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  19 <div class="titlepage"><div><div><h3 class="title">
  20 <a name="expressions"></a>Expressions</h3></div></div></div>
  21 <div class="toc"><dl class="toc">
  22 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.attr_hpp">Header &lt;boost/log/expressions/attr.hpp&gt;</a></span></dt>
  23 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.attr_fwd_hpp">Header &lt;boost/log/expressions/attr_fwd.hpp&gt;</a></span></dt>
  24 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.filter_hpp">Header &lt;boost/log/expressions/filter.hpp&gt;</a></span></dt>
  25 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatter_hpp">Header &lt;boost/log/expressions/formatter.hpp&gt;</a></span></dt>
  26 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters_hpp">Header &lt;boost/log/expressions/formatters.hpp&gt;</a></span></dt>
  27 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.auto_newline_hpp">Header &lt;boost/log/expressions/formatters/auto_newline.hpp&gt;</a></span></dt>
  28 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.c_decorator_hpp">Header &lt;boost/log/expressions/formatters/c_decorator.hpp&gt;</a></span></dt>
  29 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.char_decorator_hpp">Header &lt;boost/log/expressions/formatters/char_decorator.hpp&gt;</a></span></dt>
  30 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.csv_decorator_hpp">Header &lt;boost/log/expressions/formatters/csv_decorator.hpp&gt;</a></span></dt>
  31 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.date_time_hpp">Header &lt;boost/log/expressions/formatters/date_time.hpp&gt;</a></span></dt>
  32 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.format_hpp">Header &lt;boost/log/expressions/formatters/format.hpp&gt;</a></span></dt>
  33 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.if_hpp">Header &lt;boost/log/expressions/formatters/if.hpp&gt;</a></span></dt>
  34 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.max_size_decorator_hpp">Header &lt;boost/log/expressions/formatters/max_size_decorator.hpp&gt;</a></span></dt>
  35 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.named_scope_hpp">Header &lt;boost/log/expressions/formatters/named_scope.hpp&gt;</a></span></dt>
  36 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.stream_hpp">Header &lt;boost/log/expressions/formatters/stream.hpp&gt;</a></span></dt>
  37 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.wrap_formatter_hpp">Header &lt;boost/log/expressions/formatters/wrap_formatter.hpp&gt;</a></span></dt>
  38 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.formatters.xml_decorator_hpp">Header &lt;boost/log/expressions/formatters/xml_decorator.hpp&gt;</a></span></dt>
  39 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.is_keyword_descriptor_hpp">Header &lt;boost/log/expressions/is_keyword_descriptor.hpp&gt;</a></span></dt>
  40 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.keyword_hpp">Header &lt;boost/log/expressions/keyword.hpp&gt;</a></span></dt>
  41 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.keyword_fwd_hpp">Header &lt;boost/log/expressions/keyword_fwd.hpp&gt;</a></span></dt>
  42 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.message_hpp">Header &lt;boost/log/expressions/message.hpp&gt;</a></span></dt>
  43 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.predicates_hpp">Header &lt;boost/log/expressions/predicates.hpp&gt;</a></span></dt>
  44 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.predicates.begins_with_hpp">Header &lt;boost/log/expressions/predicates/begins_with.hpp&gt;</a></span></dt>
  45 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.predicates.channel_severity_filter_hpp">Header &lt;boost/log/expressions/predicates/channel_severity_filter.hpp&gt;</a></span></dt>
  46 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.predicates.contains_hpp">Header &lt;boost/log/expressions/predicates/contains.hpp&gt;</a></span></dt>
  47 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.predicates.ends_with_hpp">Header &lt;boost/log/expressions/predicates/ends_with.hpp&gt;</a></span></dt>
  48 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.predicates.has_attr_hpp">Header &lt;boost/log/expressions/predicates/has_attr.hpp&gt;</a></span></dt>
  49 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.predicates.is_debugger_present_hpp">Header &lt;boost/log/expressions/predicates/is_debugger_present.hpp&gt;</a></span></dt>
  50 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.predicates.is_in_range_hpp">Header &lt;boost/log/expressions/predicates/is_in_range.hpp&gt;</a></span></dt>
  51 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.predicates.matches_hpp">Header &lt;boost/log/expressions/predicates/matches.hpp&gt;</a></span></dt>
  52 <dt><span class="section"><a href="expressions.html#header.boost.log.expressions.record_hpp">Header &lt;boost/log/expressions/record.hpp&gt;</a></span></dt>
  53 </dl></div>
  54 <div class="section">
  55 <div class="titlepage"><div><div><h4 class="title">
  56 <a name="header.boost.log.expressions.attr_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/attr.hpp" target="_top">boost/log/expressions/attr.hpp</a>&gt;</h4></div></div></div>
  57 <p>Andrey Semashev </p>
  58 <p>
  59
  60 </p>
  61 <p>21.07.2012</p>
  62 <p>
  63
  64 The header contains implementation of a generic attribute placeholder in template expressions. </p>
  65 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
  66   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
  67     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
  68       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> AttributeValueT<span class="special">&gt;</span>
  69         <a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">AttributeValueT</span> <span class="special">&gt;</span> <a class="link" href="boost/log/expressions/attr_idm45711349917408.html" title="Function template attr"><span class="identifier">attr</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  70       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> AttributeValueT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">&gt;</span>
  71         <a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">AttributeValueT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">&gt;</span>
  72         <a class="link" href="boost/log/expressions/attr_idm45711349914192.html" title="Function template attr"><span class="identifier">attr</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  73     <span class="special">}</span>
  74   <span class="special">}</span>
  75 <span class="special">}</span></pre>
  76 </div>
  77 <div class="section">
  78 <div class="titlepage"><div><div><h4 class="title">
  79 <a name="header.boost.log.expressions.attr_fwd_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/attr_fwd.hpp" target="_top">boost/log/expressions/attr_fwd.hpp</a>&gt;</h4></div></div></div>
  80 <p>Andrey Semashev </p>
  81 <p>
  82
  83 </p>
  84 <p>21.07.2012</p>
  85 <p>
  86
  87 The header contains forward declaration of a generic attribute placeholder in template expressions. </p>
  88 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
  89   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
  90     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
  91       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
  92                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">&gt;</span>
  93         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">;</span>
  94       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">&gt;</span>
  95         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/attribute_terminal.html" title="Class template attribute_terminal">attribute_terminal</a><span class="special">;</span>
  96     <span class="special">}</span>
  97   <span class="special">}</span>
  98 <span class="special">}</span></pre>
  99 </div>
 100 <div class="section">
 101 <div class="titlepage"><div><div><h4 class="title">
 102 <a name="header.boost.log.expressions.filter_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/filter.hpp" target="_top">boost/log/expressions/filter.hpp</a>&gt;</h4></div></div></div>
 103 <p>Andrey Semashev </p>
 104 <p>
 105
 106 </p>
 107 <p>13.07.2012</p>
 108 <p>
 109
 110 The header contains a filter function object definition. </p>
 111 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 112   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 113     <span class="keyword">class</span> <a class="link" href="boost/log/filter.html" title="Class filter">filter</a><span class="special">;</span>
 114     <span class="keyword">void</span> <a class="link" href="boost/log/swap_idm45711349524992.html" title="Function swap"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="boost/log/filter.html" title="Class filter">filter</a> <span class="special">&amp;</span><span class="special">,</span> <a class="link" href="boost/log/filter.html" title="Class filter">filter</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 115   <span class="special">}</span>
 116 <span class="special">}</span></pre>
 117 </div>
 118 <div class="section">
 119 <div class="titlepage"><div><div><h4 class="title">
 120 <a name="header.boost.log.expressions.formatter_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatter.hpp" target="_top">boost/log/expressions/formatter.hpp</a>&gt;</h4></div></div></div>
 121 <p>Andrey Semashev </p>
 122 <p>
 123
 124 </p>
 125 <p>13.07.2012</p>
 126 <p>
 127
 128 The header contains a formatter function object definition. </p>
 129 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 130   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 131     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="boost/log/basic_formatter.html" title="Class template basic_formatter">basic_formatter</a><span class="special">;</span>
 132
 133     <span class="keyword">typedef</span> <a class="link" href="boost/log/basic_formatter.html" title="Class template basic_formatter">basic_formatter</a><span class="special">&lt;</span> <span class="keyword">char</span> <span class="special">&gt;</span> <a name="boost.log.formatter"></a><span class="identifier">formatter</span><span class="special">;</span>
 134     <span class="keyword">typedef</span> <a class="link" href="boost/log/basic_formatter.html" title="Class template basic_formatter">basic_formatter</a><span class="special">&lt;</span> <span class="keyword">wchar_t</span> <span class="special">&gt;</span> <a name="boost.log.wformatter"></a><span class="identifier">wformatter</span><span class="special">;</span>
 135     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 136       <span class="keyword">void</span> <a class="link" href="boost/log/swap_idm45711349487712.html" title="Function template swap"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="boost/log/basic_formatter.html" title="Class template basic_formatter">basic_formatter</a><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">,</span> <a class="link" href="boost/log/basic_formatter.html" title="Class template basic_formatter">basic_formatter</a><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 137     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 138     <span class="special">}</span>
 139   <span class="special">}</span>
 140 <span class="special">}</span></pre>
 141 </div>
 142 <div class="section">
 143 <div class="titlepage"><div><div><h4 class="title">
 144 <a name="header.boost.log.expressions.formatters_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters.hpp" target="_top">boost/log/expressions/formatters.hpp</a>&gt;</h4></div></div></div>
 145 <p>Andrey Semashev </p>
 146 <p>
 147
 148 </p>
 149 <p>10.11.2012</p>
 150 <p>
 151
 152 The header includes all template expression formatters. </p>
 153 </div>
 154 <div class="section">
 155 <div class="titlepage"><div><div><h4 class="title">
 156 <a name="header.boost.log.expressions.formatters.auto_newline_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/auto_newline.hpp" target="_top">boost/log/expressions/formatters/auto_newline.hpp</a>&gt;</h4></div></div></div>
 157 <p>Andrey Semashev </p>
 158 <p>
 159
 160 </p>
 161 <p>23.06.2019</p>
 162 <p>
 163
 164 The header contains implementation of formatter for inserting a newline, unless there is already one inserted. </p>
 165 </div>
 166 <div class="section">
 167 <div class="titlepage"><div><div><h4 class="title">
 168 <a name="header.boost.log.expressions.formatters.c_decorator_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/c_decorator.hpp" target="_top">boost/log/expressions/formatters/c_decorator.hpp</a>&gt;</h4></div></div></div>
 169 <p>Andrey Semashev </p>
 170 <p>
 171
 172 </p>
 173 <p>18.11.2012</p>
 174 <p>
 175
 176 The header contains implementation of C-style character decorators. </p>
 177 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 178   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 179     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 180       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="boost/log/expressions/c_ascii_pattern_replacer.html" title="Class template c_ascii_pattern_replacer">c_ascii_pattern_replacer</a><span class="special">;</span>
 181
 182       <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/c_decor.html" title="Global c_decor">c_decor</a><span class="special">;</span>
 183       <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/wc_decor.html" title="Global wc_decor">wc_decor</a><span class="special">;</span>
 184       <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/c_ascii_decor.html" title="Global c_ascii_decor">c_ascii_decor</a><span class="special">;</span>
 185       <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/wc_ascii_decor.html" title="Global wc_ascii_decor">wc_ascii_decor</a><span class="special">;</span>
 186       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/make_c_decor.html" title="Function template make_c_decor"><span class="identifier">make_c_decor</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
 187       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/make_c_ascii_decor.html" title="Function template make_c_ascii_decor"><span class="identifier">make_c_ascii_decor</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
 188     <span class="special">}</span>
 189   <span class="special">}</span>
 190 <span class="special">}</span></pre>
 191 </div>
 192 <div class="section">
 193 <div class="titlepage"><div><div><h4 class="title">
 194 <a name="header.boost.log.expressions.formatters.char_decorator_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/char_decorator.hpp" target="_top">boost/log/expressions/formatters/char_decorator.hpp</a>&gt;</h4></div></div></div>
 195 <p>Andrey Semashev </p>
 196 <p>
 197
 198 </p>
 199 <p>17.11.2012</p>
 200 <p>
 201
 202 The header contains implementation of a character decorator. </p>
 203 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 204   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 205     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 206       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SubactorT<span class="special">,</span> <span class="keyword">typename</span> ImplT<span class="special">,</span>
 207                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT <span class="special">=</span> <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">actor</span><span class="special">&gt;</span>
 208         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/char_decorator_actor.html" title="Class template char_decorator_actor">char_decorator_actor</a><span class="special">;</span>
 209       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SubactorT<span class="special">,</span> <span class="keyword">typename</span> ImplT<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="boost/log/expressions/char_decorator_terminal.html" title="Class template char_decorator_terminal">char_decorator_terminal</a><span class="special">;</span>
 210       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="boost/log/expressions/pattern_replacer.html" title="Class template pattern_replacer">pattern_replacer</a><span class="special">;</span>
 211       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> RangeT<span class="special">&gt;</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/char_dec_idm45711347999168.html" title="Function template char_decor"><span class="identifier">char_decor</span></a><span class="special">(</span><span class="identifier">RangeT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 212       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FromRangeT<span class="special">,</span> <span class="keyword">typename</span> ToRangeT<span class="special">&gt;</span>
 213         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/char_dec_idm45711347994000.html" title="Function template char_decor"><span class="identifier">char_decor</span></a><span class="special">(</span><span class="identifier">FromRangeT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">ToRangeT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 214     <span class="special">}</span>
 215   <span class="special">}</span>
 216 <span class="special">}</span></pre>
 217 </div>
 218 <div class="section">
 219 <div class="titlepage"><div><div><h4 class="title">
 220 <a name="header.boost.log.expressions.formatters.csv_decorator_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/csv_decorator.hpp" target="_top">boost/log/expressions/formatters/csv_decorator.hpp</a>&gt;</h4></div></div></div>
 221 <p>Andrey Semashev </p>
 222 <p>
 223
 224 </p>
 225 <p>18.11.2012</p>
 226 <p>
 227
 228 The header contains implementation of a CSV-style character decorator. See: <a href="http://en.wikipedia.org/wiki/Comma-separated_values" target="_top">http://en.wikipedia.org/wiki/Comma-separated_values</a> </p>
 229 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 230   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 231     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 232       <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/csv_decor.html" title="Global csv_decor">csv_decor</a><span class="special">;</span>
 233       <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/wcsv_decor.html" title="Global wcsv_decor">wcsv_decor</a><span class="special">;</span>
 234       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/make_csv_decor.html" title="Function template make_csv_decor"><span class="identifier">make_csv_decor</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
 235     <span class="special">}</span>
 236   <span class="special">}</span>
 237 <span class="special">}</span></pre>
 238 </div>
 239 <div class="section">
 240 <div class="titlepage"><div><div><h4 class="title">
 241 <a name="header.boost.log.expressions.formatters.date_time_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/date_time.hpp" target="_top">boost/log/expressions/formatters/date_time.hpp</a>&gt;</h4></div></div></div>
 242 <p>Andrey Semashev </p>
 243 <p>
 244
 245 </p>
 246 <p>16.09.2012</p>
 247 <p>
 248
 249 The header contains a formatter function for date and time attribute values. </p>
 250 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 251   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 252     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 253       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">,</span>
 254                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT <span class="special">=</span> <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">actor</span><span class="special">&gt;</span>
 255         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/format_date_time_actor.html" title="Class template format_date_time_actor">format_date_time_actor</a><span class="special">;</span>
 256       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 257         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/format_date_time_terminal.html" title="Class template format_date_time_terminal">format_date_time_terminal</a><span class="special">;</span>
 258       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> AttributeValueT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 259         <a class="link" href="boost/log/expressions/format_date_time_actor.html" title="Class template format_date_time_actor">format_date_time_actor</a><span class="special">&lt;</span> <span class="identifier">AttributeValueT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">CharT</span> <span class="special">&gt;</span>
 260         <a class="link" href="boost/log/expressions/format_d_idm45711347922352.html" title="Function template format_date_time"><span class="identifier">format_date_time</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 261       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> AttributeValueT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 262         <a class="link" href="boost/log/expressions/format_date_time_actor.html" title="Class template format_date_time_actor">format_date_time_actor</a><span class="special">&lt;</span> <span class="identifier">AttributeValueT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">CharT</span> <span class="special">&gt;</span>
 263         <a class="link" href="boost/log/expressions/format_d_idm45711347916288.html" title="Function template format_date_time"><span class="identifier">format_date_time</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 264                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 265       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 266                <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 267         <a class="link" href="boost/log/expressions/format_date_time_actor.html" title="Class template format_date_time_actor">format_date_time_actor</a><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 268         <a class="link" href="boost/log/expressions/format_d_idm45711347910208.html" title="Function template format_date_time"><span class="identifier">format_date_time</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 269                          <span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 270       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 271                <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 272         <a class="link" href="boost/log/expressions/format_date_time_actor.html" title="Class template format_date_time_actor">format_date_time_actor</a><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 273         <a class="link" href="boost/log/expressions/format_d_idm45711347902960.html" title="Function template format_date_time"><span class="identifier">format_date_time</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 274                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 275       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 276                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 277         <a class="link" href="boost/log/expressions/format_date_time_actor.html" title="Class template format_date_time_actor">format_date_time_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 278         <a class="link" href="boost/log/expressions/format_d_idm45711347895696.html" title="Function template format_date_time"><span class="identifier">format_date_time</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 279                          <span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 280       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 281                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 282         <a class="link" href="boost/log/expressions/format_date_time_actor.html" title="Class template format_date_time_actor">format_date_time_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 283         <a class="link" href="boost/log/expressions/format_d_idm45711347887344.html" title="Function template format_date_time"><span class="identifier">format_date_time</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 284                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 285     <span class="special">}</span>
 286   <span class="special">}</span>
 287 <span class="special">}</span></pre>
 288 </div>
 289 <div class="section">
 290 <div class="titlepage"><div><div><h4 class="title">
 291 <a name="header.boost.log.expressions.formatters.format_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/format.hpp" target="_top">boost/log/expressions/formatters/format.hpp</a>&gt;</h4></div></div></div>
 292 <p>Andrey Semashev </p>
 293 <p>
 294
 295 </p>
 296 <p>15.11.2012</p>
 297 <p>
 298
 299 The header contains a generic log record formatter function. </p>
 300 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 301   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 302     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 303       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="boost/log/expressions/format_terminal.html" title="Class template format_terminal">format_terminal</a><span class="special">;</span>
 304       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 305         <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">actor</span><span class="special">&lt;</span> <a class="link" href="boost/log/expressions/format_terminal.html" title="Class template format_terminal">format_terminal</a><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <a class="link" href="boost/log/expressions/format_idm45711347862720.html" title="Function template format"><span class="identifier">format</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 306       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> TraitsT<span class="special">,</span> <span class="keyword">typename</span> AllocatorT<span class="special">&gt;</span>
 307         <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">actor</span><span class="special">&lt;</span> <a class="link" href="boost/log/expressions/format_terminal.html" title="Class template format_terminal">format_terminal</a><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="special">&gt;</span>
 308         <a class="link" href="boost/log/expressions/format_idm45711347859344.html" title="Function template format"><span class="identifier">format</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">TraitsT</span><span class="special">,</span> <span class="identifier">AllocatorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 309     <span class="special">}</span>
 310   <span class="special">}</span>
 311 <span class="special">}</span></pre>
 312 </div>
 313 <div class="section">
 314 <div class="titlepage"><div><div><h4 class="title">
 315 <a name="header.boost.log.expressions.formatters.if_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/if.hpp" target="_top">boost/log/expressions/formatters/if.hpp</a>&gt;</h4></div></div></div>
 316 <p>Andrey Semashev </p>
 317 <p>
 318
 319 </p>
 320 <p>17.11.2012</p>
 321 <p>
 322
 323 The header contains implementation of a conditional formatter. </p>
 324 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 325   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 326     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 327       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CondT<span class="special">&gt;</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/if_.html" title="Function template if_"><span class="identifier">if_</span></a><span class="special">(</span><span class="identifier">CondT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 328     <span class="special">}</span>
 329   <span class="special">}</span>
 330 <span class="special">}</span></pre>
 331 </div>
 332 <div class="section">
 333 <div class="titlepage"><div><div><h4 class="title">
 334 <a name="header.boost.log.expressions.formatters.max_size_decorator_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/max_size_decorator.hpp" target="_top">boost/log/expressions/formatters/max_size_decorator.hpp</a>&gt;</h4></div></div></div>
 335 <p>Andrey Semashev </p>
 336 <p>
 337
 338 </p>
 339 <p>06.07.2016</p>
 340 <p>
 341
 342 The header contains implementation of a string length limiting decorator. </p>
 343 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 344   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 345     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 346       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SubactorT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">,</span>
 347                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT <span class="special">=</span> <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">actor</span><span class="special">&gt;</span>
 348         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/max_size_decorator_actor.html" title="Class template max_size_decorator_actor">max_size_decorator_actor</a><span class="special">;</span>
 349       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SubactorT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 350         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/max_size_idm45711347831088.html" title="Class template max_size_decorator_terminal">max_size_decorator_terminal</a><span class="special">;</span>
 351       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/max_size_idm45711347800960.html" title="Function template max_size_decor"><span class="identifier">max_size_decor</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
 352       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 353         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/max_size_idm45711347796688.html" title="Function template max_size_decor"><span class="identifier">max_size_decor</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 354       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 355         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/max_size_idm45711347789264.html" title="Function template max_size_decor"><span class="identifier">max_size_decor</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">,</span>
 356                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 357     <span class="special">}</span>
 358   <span class="special">}</span>
 359 <span class="special">}</span></pre>
 360 </div>
 361 <div class="section">
 362 <div class="titlepage"><div><div><h4 class="title">
 363 <a name="header.boost.log.expressions.formatters.named_scope_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/named_scope.hpp" target="_top">boost/log/expressions/formatters/named_scope.hpp</a>&gt;</h4></div></div></div>
 364 <p>Andrey Semashev </p>
 365 <p>
 366
 367 </p>
 368 <p>11.11.2012</p>
 369 <p>
 370
 371 The header contains a formatter function for named scope attribute values. </p>
 372 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 373   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 374     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 375       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">,</span>
 376                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT <span class="special">=</span> <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">actor</span><span class="special">&gt;</span>
 377         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/format_named_scope_actor.html" title="Class template format_named_scope_actor">format_named_scope_actor</a><span class="special">;</span>
 378       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 379         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/format_n_idm45711347758064.html" title="Class template format_named_scope_terminal">format_named_scope_terminal</a><span class="special">;</span>
 380
 381       <span class="comment">// Scope iteration directions. </span>
 382       <span class="keyword">enum</span> <a name="boost.log.expressions.scope_iteration_direction"></a>scope_iteration_direction <span class="special">{</span> forward, reverse <span class="special">}</span><span class="special">;</span>
 383       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 384         <a class="link" href="boost/log/expressions/format_named_scope_actor.html" title="Class template format_named_scope_actor">format_named_scope_actor</a><span class="special">&lt;</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">CharT</span> <span class="special">&gt;</span>
 385         <a class="link" href="boost/log/expressions/format_n_idm45711347725584.html" title="Function template format_named_scope"><span class="identifier">format_named_scope</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 386       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 387         <a class="link" href="boost/log/expressions/format_named_scope_actor.html" title="Class template format_named_scope_actor">format_named_scope_actor</a><span class="special">&lt;</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">CharT</span> <span class="special">&gt;</span>
 388         <a class="link" href="boost/log/expressions/format_n_idm45711347720064.html" title="Function template format_named_scope"><span class="identifier">format_named_scope</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 389                            <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 390       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 391                <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 392         <a class="link" href="boost/log/expressions/format_named_scope_actor.html" title="Class template format_named_scope_actor">format_named_scope_actor</a><span class="special">&lt;</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 393         <a class="link" href="boost/log/expressions/format_n_idm45711347714528.html" title="Function template format_named_scope"><span class="identifier">format_named_scope</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 394                            <span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 395       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 396                <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 397         <a class="link" href="boost/log/expressions/format_named_scope_actor.html" title="Class template format_named_scope_actor">format_named_scope_actor</a><span class="special">&lt;</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 398         <a class="link" href="boost/log/expressions/format_n_idm45711347707280.html" title="Function template format_named_scope"><span class="identifier">format_named_scope</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 399                            <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 400       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 401                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 402         <a class="link" href="boost/log/expressions/format_named_scope_actor.html" title="Class template format_named_scope_actor">format_named_scope_actor</a><span class="special">&lt;</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 403         <a class="link" href="boost/log/expressions/format_n_idm45711347700016.html" title="Function template format_named_scope"><span class="identifier">format_named_scope</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 404                            <span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 405       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 406                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span>
 407         <a class="link" href="boost/log/expressions/format_named_scope_actor.html" title="Class template format_named_scope_actor">format_named_scope_actor</a><span class="special">&lt;</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 408         <a class="link" href="boost/log/expressions/format_n_idm45711347691632.html" title="Function template format_named_scope"><span class="identifier">format_named_scope</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 409                            <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 410       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span><span class="special">...</span> ArgsT<span class="special">&gt;</span>
 411         <span class="identifier">unspecified</span> <a class="link" href="boost/log/expressions/format_n_idm45711347683232.html" title="Function format_named_scope"><span class="identifier">format_named_scope</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 412                                        <span class="identifier">ArgsT</span><span class="special">...</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 413       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 414                <span class="keyword">typename</span><span class="special">...</span> ArgsT<span class="special">&gt;</span>
 415         <span class="identifier">unspecified</span> <a class="link" href="boost/log/expressions/format_n_idm45711347683232.html" title="Function format_named_scope"><span class="identifier">format_named_scope</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 416                                        <span class="identifier">ArgsT</span><span class="special">...</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 417       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 418                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> ArgsT<span class="special">&gt;</span>
 419         <span class="identifier">unspecified</span> <a class="link" href="boost/log/expressions/format_n_idm45711347683232.html" title="Function format_named_scope"><span class="identifier">format_named_scope</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 420                                        <span class="identifier">ArgsT</span><span class="special">...</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 421     <span class="special">}</span>
 422   <span class="special">}</span>
 423 <span class="special">}</span></pre>
 424 </div>
 425 <div class="section">
 426 <div class="titlepage"><div><div><h4 class="title">
 427 <a name="header.boost.log.expressions.formatters.stream_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/stream.hpp" target="_top">boost/log/expressions/formatters/stream.hpp</a>&gt;</h4></div></div></div>
 428 <p>Andrey Semashev </p>
 429 <p>
 430
 431 </p>
 432 <p>24.07.2012</p>
 433 <p>
 434
 435 The header contains implementation of a stream placeholder in template expressions. </p>
 436 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 437   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 438     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 439       <span class="keyword">typedef</span> <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">expression</span><span class="special">::</span><span class="identifier">argument</span><span class="special">&lt;</span> <span class="number">2</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span> <a class="link" href="boost/log/expressions/stream_type.html" title="Type definition stream_type"><span class="identifier">stream_type</span></a><span class="special">;</span>
 440
 441       <span class="keyword">const</span> <span class="identifier">stream_type</span> <a class="link" href="boost/log/expressions/stream.html" title="Global stream">stream</a><span class="special">;</span>
 442     <span class="special">}</span>
 443   <span class="special">}</span>
 444 <span class="special">}</span></pre>
 445 </div>
 446 <div class="section">
 447 <div class="titlepage"><div><div><h4 class="title">
 448 <a name="header.boost.log.expressions.formatters.wrap_formatter_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/wrap_formatter.hpp" target="_top">boost/log/expressions/formatters/wrap_formatter.hpp</a>&gt;</h4></div></div></div>
 449 <p>Andrey Semashev </p>
 450 <p>
 451
 452 </p>
 453 <p>24.11.2012</p>
 454 <p>
 455
 456 The header contains a formatter function wrapper that enables third-party functions to participate in formatting expressions. </p>
 457 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 458   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 459     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 460       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FunT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">,</span>
 461                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT <span class="special">=</span> <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">actor</span><span class="special">&gt;</span>
 462         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/wrapped_formatter_actor.html" title="Class template wrapped_formatter_actor">wrapped_formatter_actor</a><span class="special">;</span>
 463       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FunT<span class="special">,</span> <span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="boost/log/expressions/wrapped_formatter_terminal.html" title="Class template wrapped_formatter_terminal">wrapped_formatter_terminal</a><span class="special">;</span>
 464       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> FunT<span class="special">&gt;</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/wrap_for_idm45711347617056.html" title="Function template wrap_formatter"><span class="identifier">wrap_formatter</span></a><span class="special">(</span><span class="identifier">FunT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 465       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> FunT<span class="special">&gt;</span>
 466         <a class="link" href="boost/log/expressions/wrapped_formatter_actor.html" title="Class template wrapped_formatter_actor">wrapped_formatter_actor</a><span class="special">&lt;</span> <span class="identifier">FunT</span><span class="special">,</span> <span class="identifier">CharT</span> <span class="special">&gt;</span> <a class="link" href="boost/log/expressions/wrap_for_idm45711347612864.html" title="Function template wrap_formatter"><span class="identifier">wrap_formatter</span></a><span class="special">(</span><span class="identifier">FunT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 467     <span class="special">}</span>
 468   <span class="special">}</span>
 469 <span class="special">}</span></pre>
 470 </div>
 471 <div class="section">
 472 <div class="titlepage"><div><div><h4 class="title">
 473 <a name="header.boost.log.expressions.formatters.xml_decorator_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/formatters/xml_decorator.hpp" target="_top">boost/log/expressions/formatters/xml_decorator.hpp</a>&gt;</h4></div></div></div>
 474 <p>Andrey Semashev </p>
 475 <p>
 476
 477 </p>
 478 <p>18.11.2012</p>
 479 <p>
 480
 481 The header contains implementation of a XML-style character decorator. </p>
 482 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 483   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 484     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 485       <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/xml_decor.html" title="Global xml_decor">xml_decor</a><span class="special">;</span>
 486       <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/wxml_decor.html" title="Global wxml_decor">wxml_decor</a><span class="special">;</span>
 487       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/make_xml_decor.html" title="Function template make_xml_decor"><span class="identifier">make_xml_decor</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
 488     <span class="special">}</span>
 489   <span class="special">}</span>
 490 <span class="special">}</span></pre>
 491 </div>
 492 <div class="section">
 493 <div class="titlepage"><div><div><h4 class="title">
 494 <a name="header.boost.log.expressions.is_keyword_descriptor_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/is_keyword_descriptor.hpp" target="_top">boost/log/expressions/is_keyword_descriptor.hpp</a>&gt;</h4></div></div></div>
 495 <p>Andrey Semashev </p>
 496 <p>
 497
 498 </p>
 499 <p>14.07.2012</p>
 500 <p>
 501
 502 The header contains attribute keyword descriptor detection trait. </p>
 503 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 504   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 505     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 506       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> VoidT <span class="special">=</span> <span class="keyword">void</span><span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="boost/log/expressions/is_keyword_descriptor.html" title="Struct template is_keyword_descriptor">is_keyword_descriptor</a><span class="special">;</span>
 507       <span class="keyword">struct</span> <a class="link" href="boost/log/expressions/keyword_descriptor.html" title="Struct keyword_descriptor">keyword_descriptor</a><span class="special">;</span>
 508     <span class="special">}</span>
 509   <span class="special">}</span>
 510 <span class="special">}</span></pre>
 511 </div>
 512 <div class="section">
 513 <div class="titlepage"><div><div><h4 class="title">
 514 <a name="header.boost.log.expressions.keyword_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/keyword.hpp" target="_top">boost/log/expressions/keyword.hpp</a>&gt;</h4></div></div></div>
 515 <p>Andrey Semashev </p>
 516 <p>
 517
 518 </p>
 519 <p>29.01.2012</p>
 520 <p>
 521
 522 The header contains attribute keyword declaration. </p>
 523 <pre class="synopsis">
 524
 525 <a class="link" href="BOOST_LO_idm45711347583312.html" title="Macro BOOST_LOG_ATTRIBUTE_KEYWORD_TYPE">BOOST_LOG_ATTRIBUTE_KEYWORD_TYPE</a>(keyword_, name_, value_type_)
 526 <a class="link" href="BOOST_LO_idm45711347575568.html" title="Macro BOOST_LOG_ATTRIBUTE_KEYWORD">BOOST_LOG_ATTRIBUTE_KEYWORD</a>(keyword_, name_, value_type_)</pre>
 527 </div>
 528 <div class="section">
 529 <div class="titlepage"><div><div><h4 class="title">
 530 <a name="header.boost.log.expressions.keyword_fwd_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/keyword_fwd.hpp" target="_top">boost/log/expressions/keyword_fwd.hpp</a>&gt;</h4></div></div></div>
 531 <p>Andrey Semashev </p>
 532 <p>
 533
 534 </p>
 535 <p>29.01.2012</p>
 536 <p>
 537
 538 The header contains attribute keyword forward declaration. </p>
 539 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 540   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 541     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 542       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">&gt;</span>
 543         <span class="keyword">struct</span> <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">;</span>
 544     <span class="special">}</span>
 545   <span class="special">}</span>
 546 <span class="special">}</span></pre>
 547 </div>
 548 <div class="section">
 549 <div class="titlepage"><div><div><h4 class="title">
 550 <a name="header.boost.log.expressions.message_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/message.hpp" target="_top">boost/log/expressions/message.hpp</a>&gt;</h4></div></div></div>
 551 <p>Andrey Semashev </p>
 552 <p>
 553
 554 </p>
 555 <p>13.07.2012</p>
 556 <p>
 557
 558 The header contains log message keyword declaration. </p>
 559 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 560   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 561     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 562       <span class="keyword">typedef</span> <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <a class="link" href="boost/log/expressions/tag/message.html" title="Struct message">tag::message</a> <span class="special">&gt;</span> <a class="link" href="boost/log/expressions/message_type.html" title="Type definition message_type"><span class="identifier">message_type</span></a><span class="special">;</span>
 563       <span class="keyword">typedef</span> <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <a class="link" href="boost/log/expressions/tag/smessage.html" title="Struct smessage">tag::smessage</a> <span class="special">&gt;</span> <a class="link" href="boost/log/expressions/smessage_type.html" title="Type definition smessage_type"><span class="identifier">smessage_type</span></a><span class="special">;</span>
 564       <span class="keyword">typedef</span> <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <a class="link" href="boost/log/expressions/tag/wmessage.html" title="Struct wmessage">tag::wmessage</a> <span class="special">&gt;</span> <a class="link" href="boost/log/expressions/wmessage_type.html" title="Type definition wmessage_type"><span class="identifier">wmessage_type</span></a><span class="special">;</span>
 565
 566       <span class="keyword">const</span> <span class="identifier">message_type</span> <a class="link" href="boost/log/expressions/message.html" title="Global message">message</a><span class="special">;</span>
 567       <span class="keyword">const</span> <span class="identifier">smessage_type</span> <a class="link" href="boost/log/expressions/smessage.html" title="Global smessage">smessage</a><span class="special">;</span>
 568       <span class="keyword">const</span> <span class="identifier">wmessage_type</span> <a class="link" href="boost/log/expressions/wmessage.html" title="Global wmessage">wmessage</a><span class="special">;</span>
 569       <span class="keyword">namespace</span> <span class="identifier">tag</span> <span class="special">{</span>
 570         <span class="keyword">struct</span> <a class="link" href="boost/log/expressions/tag/message.html" title="Struct message">message</a><span class="special">;</span>
 571         <span class="keyword">struct</span> <a class="link" href="boost/log/expressions/tag/smessage.html" title="Struct smessage">smessage</a><span class="special">;</span>
 572         <span class="keyword">struct</span> <a class="link" href="boost/log/expressions/tag/wmessage.html" title="Struct wmessage">wmessage</a><span class="special">;</span>
 573       <span class="special">}</span>
 574     <span class="special">}</span>
 575   <span class="special">}</span>
 576 <span class="special">}</span></pre>
 577 </div>
 578 <div class="section">
 579 <div class="titlepage"><div><div><h4 class="title">
 580 <a name="header.boost.log.expressions.predicates_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/predicates.hpp" target="_top">boost/log/expressions/predicates.hpp</a>&gt;</h4></div></div></div>
 581 <p>Andrey Semashev </p>
 582 <p>
 583
 584 </p>
 585 <p>29.01.2012</p>
 586 <p>
 587
 588 The header includes all template expression predicates. </p>
 589 </div>
 590 <div class="section">
 591 <div class="titlepage"><div><div><h4 class="title">
 592 <a name="header.boost.log.expressions.predicates.begins_with_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/predicates/begins_with.hpp" target="_top">boost/log/expressions/predicates/begins_with.hpp</a>&gt;</h4></div></div></div>
 593 <p>Andrey Semashev </p>
 594 <p>
 595
 596 </p>
 597 <p>02.09.2012</p>
 598 <p>
 599
 600 The header contains implementation of a <code class="computeroutput">begins_with</code> predicate in template expressions. </p>
 601 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 602   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 603     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 604       <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/attribute_begins_with.html" title="Type definition attribute_begins_with"><span class="identifier">attribute_begins_with</span></a><span class="special">;</span>
 605       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 606                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SubstringT<span class="special">&gt;</span>
 607         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/begins_w_idm45711347518400.html" title="Function template begins_with"><span class="identifier">begins_with</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 608                                 <span class="identifier">SubstringT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 609       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 610                <span class="keyword">typename</span> SubstringT<span class="special">&gt;</span>
 611         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/begins_w_idm45711347511760.html" title="Function template begins_with"><span class="identifier">begins_with</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 612                                 <span class="identifier">SubstringT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 613       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> SubstringT<span class="special">&gt;</span>
 614         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/begins_w_idm45711347506256.html" title="Function template begins_with"><span class="identifier">begins_with</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SubstringT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 615     <span class="special">}</span>
 616   <span class="special">}</span>
 617 <span class="special">}</span></pre>
 618 </div>
 619 <div class="section">
 620 <div class="titlepage"><div><div><h4 class="title">
 621 <a name="header.boost.log.expressions.predicates.channel_severity_filter_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/predicates/channel_severity_filter.hpp" target="_top">boost/log/expressions/predicates/channel_severity_filter.hpp</a>&gt;</h4></div></div></div>
 622 <p>Andrey Semashev </p>
 623 <p>
 624
 625 </p>
 626 <p>25.11.2012</p>
 627 <p>
 628
 629 The header contains implementation of a minimal severity per channel filter. </p>
 630 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 631   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 632     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 633       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 634                <span class="keyword">typename</span> ChannelFallbackT <span class="special">=</span> <span class="identifier">fallback_to_none</span><span class="special">,</span>
 635                <span class="keyword">typename</span> SeverityFallbackT <span class="special">=</span> <span class="identifier">fallback_to_none</span><span class="special">,</span>
 636                <span class="keyword">typename</span> ChannelOrderT <span class="special">=</span> <span class="identifier">less</span><span class="special">,</span>
 637                <span class="keyword">typename</span> SeverityCompareT <span class="special">=</span> <span class="identifier">greater_equal</span><span class="special">,</span>
 638                <span class="keyword">typename</span> AllocatorT <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span>
 639                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT <span class="special">=</span> <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">actor</span><span class="special">&gt;</span>
 640         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/channel__idm45711347497888.html" title="Class template channel_severity_filter_actor">channel_severity_filter_actor</a><span class="special">;</span>
 641       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 642                <span class="keyword">typename</span> ChannelFallbackT <span class="special">=</span> <span class="identifier">fallback_to_none</span><span class="special">,</span>
 643                <span class="keyword">typename</span> SeverityFallbackT <span class="special">=</span> <span class="identifier">fallback_to_none</span><span class="special">,</span>
 644                <span class="keyword">typename</span> ChannelOrderT <span class="special">=</span> <span class="identifier">less</span><span class="special">,</span>
 645                <span class="keyword">typename</span> SeverityCompareT <span class="special">=</span> <span class="identifier">greater_equal</span><span class="special">,</span>
 646                <span class="keyword">typename</span> AllocatorT <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span> <span class="special">&gt;</span>
 647         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/channel__idm45711347468608.html" title="Class template channel_severity_filter_terminal">channel_severity_filter_terminal</a><span class="special">;</span>
 648       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">&gt;</span>
 649         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span> <span class="special">&gt;</span>
 650         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 651                                 <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 652       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SeverityT<span class="special">,</span> <span class="keyword">typename</span> ChannelDescriptorT<span class="special">,</span>
 653                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">&gt;</span>
 654         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">ChannelDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">greater_equal</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 655         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">ChannelDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 656                                 <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 657       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityDescriptorT<span class="special">,</span>
 658                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">&gt;</span>
 659         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">SeverityDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">greater_equal</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 660         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 661                                 <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">SeverityDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 662       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelDescriptorT<span class="special">,</span> <span class="keyword">typename</span> SeverityDescriptorT<span class="special">,</span>
 663                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">&gt;</span>
 664         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">ChannelDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">SeverityDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">greater_equal</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 665         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">ChannelDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 666                                 <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">SeverityDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 667       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SeverityT<span class="special">,</span> <span class="keyword">typename</span> ChannelT<span class="special">,</span>
 668                <span class="keyword">typename</span> ChannelFallbackT<span class="special">,</span> <span class="keyword">typename</span> ChannelTagT<span class="special">,</span>
 669                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">&gt;</span>
 670         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">greater_equal</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 671         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">ChannelTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 672                                 <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 673       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 674                <span class="keyword">typename</span> SeverityFallbackT<span class="special">,</span> <span class="keyword">typename</span> SeverityTagT<span class="special">,</span>
 675                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">&gt;</span>
 676         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">greater_equal</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 677         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 678                                 <a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">SeverityTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 679       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> ChannelFallbackT<span class="special">,</span>
 680                <span class="keyword">typename</span> ChannelTagT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 681                <span class="keyword">typename</span> SeverityFallbackT<span class="special">,</span> <span class="keyword">typename</span> SeverityTagT<span class="special">,</span>
 682                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">&gt;</span>
 683         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">greater_equal</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 684         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">ChannelTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 685                                 <a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">SeverityTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 686       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 687                <span class="keyword">typename</span> SeverityCompareT<span class="special">&gt;</span>
 688         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span> <span class="special">&gt;</span>
 689         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 690                                 <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 691                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 692       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SeverityT<span class="special">,</span> <span class="keyword">typename</span> ChannelDescriptorT<span class="special">,</span>
 693                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">&gt;</span>
 694         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">ChannelDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 695         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">ChannelDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 696                                 <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 697                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 698       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityDescriptorT<span class="special">,</span>
 699                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">&gt;</span>
 700         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">SeverityDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 701         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 702                                 <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">SeverityDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 703                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 704       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelDescriptorT<span class="special">,</span> <span class="keyword">typename</span> SeverityDescriptorT<span class="special">,</span>
 705                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">&gt;</span>
 706         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">ChannelDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">SeverityDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 707         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">ChannelDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 708                                 <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">SeverityDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 709                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 710       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SeverityT<span class="special">,</span> <span class="keyword">typename</span> ChannelT<span class="special">,</span>
 711                <span class="keyword">typename</span> ChannelFallbackT<span class="special">,</span> <span class="keyword">typename</span> ChannelTagT<span class="special">,</span>
 712                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">&gt;</span>
 713         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 714         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">ChannelTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 715                                 <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 716                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 717       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 718                <span class="keyword">typename</span> SeverityFallbackT<span class="special">,</span> <span class="keyword">typename</span> SeverityTagT<span class="special">,</span>
 719                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">&gt;</span>
 720         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 721         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 722                                 <a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">SeverityTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 723                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 724       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> ChannelFallbackT<span class="special">,</span>
 725                <span class="keyword">typename</span> ChannelTagT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 726                <span class="keyword">typename</span> SeverityFallbackT<span class="special">,</span> <span class="keyword">typename</span> SeverityTagT<span class="special">,</span>
 727                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">&gt;</span>
 728         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">less</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 729         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">ChannelTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 730                                 <a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">SeverityTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 731                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 732       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 733                <span class="keyword">typename</span> SeverityCompareT<span class="special">,</span> <span class="keyword">typename</span> ChannelOrderT<span class="special">&gt;</span>
 734         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">ChannelOrderT</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span> <span class="special">&gt;</span>
 735         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 736                                 <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 737                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 738                                 <span class="identifier">ChannelOrderT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 739       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SeverityT<span class="special">,</span> <span class="keyword">typename</span> ChannelDescriptorT<span class="special">,</span>
 740                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">,</span>
 741                <span class="keyword">typename</span> ChannelOrderT<span class="special">&gt;</span>
 742         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">ChannelDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">ChannelOrderT</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 743         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">ChannelDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 744                                 <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 745                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 746                                 <span class="identifier">ChannelOrderT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 747       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityDescriptorT<span class="special">,</span>
 748                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">,</span>
 749                <span class="keyword">typename</span> ChannelOrderT<span class="special">&gt;</span>
 750         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">SeverityDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">ChannelOrderT</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 751         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 752                                 <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">SeverityDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 753                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 754                                 <span class="identifier">ChannelOrderT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 755       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelDescriptorT<span class="special">,</span> <span class="keyword">typename</span> SeverityDescriptorT<span class="special">,</span>
 756                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">,</span>
 757                <span class="keyword">typename</span> ChannelOrderT<span class="special">&gt;</span>
 758         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">ChannelDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">SeverityDescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">ChannelOrderT</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 759         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">ChannelDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 760                                 <a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">SeverityDescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 761                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 762                                 <span class="identifier">ChannelOrderT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 763       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SeverityT<span class="special">,</span> <span class="keyword">typename</span> ChannelT<span class="special">,</span>
 764                <span class="keyword">typename</span> ChannelFallbackT<span class="special">,</span> <span class="keyword">typename</span> ChannelTagT<span class="special">,</span>
 765                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">,</span>
 766                <span class="keyword">typename</span> ChannelOrderT<span class="special">&gt;</span>
 767         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">ChannelOrderT</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 768         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">ChannelTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 769                                 <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 770                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 771                                 <span class="identifier">ChannelOrderT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 772       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 773                <span class="keyword">typename</span> SeverityFallbackT<span class="special">,</span> <span class="keyword">typename</span> SeverityTagT<span class="special">,</span>
 774                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">,</span>
 775                <span class="keyword">typename</span> ChannelOrderT<span class="special">&gt;</span>
 776         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">fallback_to_none</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">ChannelOrderT</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 777         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 778                                 <a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">SeverityTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 779                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 780                                 <span class="identifier">ChannelOrderT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 781       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ChannelT<span class="special">,</span> <span class="keyword">typename</span> ChannelFallbackT<span class="special">,</span>
 782                <span class="keyword">typename</span> ChannelTagT<span class="special">,</span> <span class="keyword">typename</span> SeverityT<span class="special">,</span>
 783                <span class="keyword">typename</span> SeverityFallbackT<span class="special">,</span> <span class="keyword">typename</span> SeverityTagT<span class="special">,</span>
 784                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SeverityCompareT<span class="special">,</span>
 785                <span class="keyword">typename</span> ChannelOrderT<span class="special">&gt;</span>
 786         <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">ChannelOrderT</span><span class="special">,</span> <span class="identifier">SeverityCompareT</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span>
 787         <a class="link" href="boost/log/expressions/channel_severity_filter.html" title="Function channel_severity_filter"><span class="identifier">channel_severity_filter</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">ChannelFallbackT</span><span class="special">,</span> <span class="identifier">ChannelTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 788                                 <a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">SeverityT</span><span class="special">,</span> <span class="identifier">SeverityFallbackT</span><span class="special">,</span> <span class="identifier">SeverityTagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 789                                 <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 790                                 <span class="identifier">ChannelOrderT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 791     <span class="special">}</span>
 792   <span class="special">}</span>
 793 <span class="special">}</span></pre>
 794 </div>
 795 <div class="section">
 796 <div class="titlepage"><div><div><h4 class="title">
 797 <a name="header.boost.log.expressions.predicates.contains_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/predicates/contains.hpp" target="_top">boost/log/expressions/predicates/contains.hpp</a>&gt;</h4></div></div></div>
 798 <p>Andrey Semashev </p>
 799 <p>
 800
 801 </p>
 802 <p>02.09.2012</p>
 803 <p>
 804
 805 The header contains implementation of a <code class="computeroutput">contains</code> predicate in template expressions. </p>
 806 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 807   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 808     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 809       <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/attribute_contains.html" title="Type definition attribute_contains"><span class="identifier">attribute_contains</span></a><span class="special">;</span>
 810       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 811                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SubstringT<span class="special">&gt;</span>
 812         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/contains_idm45711347279296.html" title="Function template contains"><span class="identifier">contains</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 813                              <span class="identifier">SubstringT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 814       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 815                <span class="keyword">typename</span> SubstringT<span class="special">&gt;</span>
 816         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/contains_idm45711347272656.html" title="Function template contains"><span class="identifier">contains</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 817                              <span class="identifier">SubstringT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 818       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> SubstringT<span class="special">&gt;</span>
 819         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/contains_idm45711347267152.html" title="Function template contains"><span class="identifier">contains</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SubstringT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 820     <span class="special">}</span>
 821   <span class="special">}</span>
 822 <span class="special">}</span></pre>
 823 </div>
 824 <div class="section">
 825 <div class="titlepage"><div><div><h4 class="title">
 826 <a name="header.boost.log.expressions.predicates.ends_with_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/predicates/ends_with.hpp" target="_top">boost/log/expressions/predicates/ends_with.hpp</a>&gt;</h4></div></div></div>
 827 <p>Andrey Semashev </p>
 828 <p>
 829
 830 </p>
 831 <p>02.09.2012</p>
 832 <p>
 833
 834 The header contains implementation of a <code class="computeroutput">ends_with</code> predicate in template expressions. </p>
 835 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 836   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 837     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 838       <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/attribute_ends_with.html" title="Type definition attribute_ends_with"><span class="identifier">attribute_ends_with</span></a><span class="special">;</span>
 839       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 840                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> SubstringT<span class="special">&gt;</span>
 841         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/ends_wit_idm45711347256848.html" title="Function template ends_with"><span class="identifier">ends_with</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 842                               <span class="identifier">SubstringT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 843       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 844                <span class="keyword">typename</span> SubstringT<span class="special">&gt;</span>
 845         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/ends_wit_idm45711347250208.html" title="Function template ends_with"><span class="identifier">ends_with</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 846                               <span class="identifier">SubstringT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 847       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> SubstringT<span class="special">&gt;</span>
 848         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/ends_wit_idm45711347244704.html" title="Function template ends_with"><span class="identifier">ends_with</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SubstringT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 849     <span class="special">}</span>
 850   <span class="special">}</span>
 851 <span class="special">}</span></pre>
 852 </div>
 853 <div class="section">
 854 <div class="titlepage"><div><div><h4 class="title">
 855 <a name="header.boost.log.expressions.predicates.has_attr_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/predicates/has_attr.hpp" target="_top">boost/log/expressions/predicates/has_attr.hpp</a>&gt;</h4></div></div></div>
 856 <p>Andrey Semashev </p>
 857 <p>
 858
 859 </p>
 860 <p>23.07.2012</p>
 861 <p>
 862
 863 The header contains implementation of a generic attribute presence checker in template expressions. </p>
 864 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 865   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 866     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 867       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="boost/log/expressions/has_attribute.html" title="Class template has_attribute">has_attribute</a><span class="special">;</span>
 868
 869       <span class="keyword">template</span><span class="special">&lt;</span><span class="special">&gt;</span> <span class="keyword">class</span> <a class="link" href="boost/log/expressions/has_attr_idm45711347224064.html" title="Class has_attribute&lt;void&gt;">has_attribute</a><span class="special">&lt;</span><span class="keyword">void</span><span class="special">&gt;</span><span class="special">;</span>
 870       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> AttributeValueT<span class="special">&gt;</span>
 871         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/has_attr_idm45711347208272.html" title="Function template has_attr"><span class="identifier">has_attr</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 872       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">&gt;</span>
 873         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/has_attr_idm45711347204736.html" title="Function template has_attr"><span class="identifier">has_attr</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 874     <span class="special">}</span>
 875   <span class="special">}</span>
 876 <span class="special">}</span></pre>
 877 </div>
 878 <div class="section">
 879 <div class="titlepage"><div><div><h4 class="title">
 880 <a name="header.boost.log.expressions.predicates.is_debugger_present_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/predicates/is_debugger_present.hpp" target="_top">boost/log/expressions/predicates/is_debugger_present.hpp</a>&gt;</h4></div></div></div>
 881 <p>Andrey Semashev </p>
 882 <p>
 883
 884 </p>
 885 <p>05.12.2012</p>
 886 <p>
 887
 888 The header contains implementation of the <code class="computeroutput">is_debugger_present</code> predicate in template expressions. </p>
 889 </div>
 890 <div class="section">
 891 <div class="titlepage"><div><div><h4 class="title">
 892 <a name="header.boost.log.expressions.predicates.is_in_range_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/predicates/is_in_range.hpp" target="_top">boost/log/expressions/predicates/is_in_range.hpp</a>&gt;</h4></div></div></div>
 893 <p>Andrey Semashev </p>
 894 <p>
 895
 896 </p>
 897 <p>02.09.2012</p>
 898 <p>
 899
 900 The header contains implementation of an <code class="computeroutput">is_in_range</code> predicate in template expressions. </p>
 901 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 902   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 903     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 904       <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/attribute_is_in_range.html" title="Type definition attribute_is_in_range"><span class="identifier">attribute_is_in_range</span></a><span class="special">;</span>
 905       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 906                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> BoundaryT<span class="special">&gt;</span>
 907         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/is_in_ra_idm45711347192160.html" title="Function template is_in_range"><span class="identifier">is_in_range</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 908                                 <span class="identifier">BoundaryT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">BoundaryT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 909       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 910                <span class="keyword">typename</span> BoundaryT<span class="special">&gt;</span>
 911         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/is_in_ra_idm45711347184352.html" title="Function template is_in_range"><span class="identifier">is_in_range</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 912                                 <span class="identifier">BoundaryT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">BoundaryT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 913       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> BoundaryT<span class="special">&gt;</span>
 914         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/is_in_ra_idm45711347177680.html" title="Function template is_in_range"><span class="identifier">is_in_range</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">BoundaryT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 915                                 <span class="identifier">BoundaryT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 916     <span class="special">}</span>
 917   <span class="special">}</span>
 918 <span class="special">}</span></pre>
 919 </div>
 920 <div class="section">
 921 <div class="titlepage"><div><div><h4 class="title">
 922 <a name="header.boost.log.expressions.predicates.matches_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/predicates/matches.hpp" target="_top">boost/log/expressions/predicates/matches.hpp</a>&gt;</h4></div></div></div>
 923 <p>Andrey Semashev </p>
 924 <p>
 925
 926 </p>
 927 <p>02.09.2012</p>
 928 <p>
 929
 930 The header contains implementation of a <code class="computeroutput">matches</code> predicate in template expressions. </p>
 931 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 932   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 933     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 934       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> RegexT<span class="special">,</span>
 935                <span class="keyword">typename</span> FallbackPolicyT <span class="special">=</span> <span class="identifier">fallback_to_none</span><span class="special">&gt;</span>
 936         <span class="keyword">class</span> <a class="link" href="boost/log/expressions/attribute_matches.html" title="Class template attribute_matches">attribute_matches</a><span class="special">;</span>
 937       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">,</span>
 938                <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> <span class="keyword">typename</span> RegexT<span class="special">&gt;</span>
 939         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/matches_idm45711347155120.html" title="Function template matches"><span class="identifier">matches</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_actor.html" title="Class template attribute_actor">attribute_actor</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">FallbackPolicyT</span><span class="special">,</span> <span class="identifier">TagT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 940                             <span class="identifier">RegexT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 941       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span>
 942                <span class="keyword">typename</span> RegexT<span class="special">&gt;</span>
 943         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/matches_idm45711347148464.html" title="Function template matches"><span class="identifier">matches</span></a><span class="special">(</span><a class="link" href="boost/log/expressions/attribute_keyword.html" title="Struct template attribute_keyword">attribute_keyword</a><span class="special">&lt;</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span>
 944                             <span class="identifier">RegexT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 945       <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> RegexT<span class="special">&gt;</span>
 946         <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/expressions/matches_idm45711347142944.html" title="Function template matches"><span class="identifier">matches</span></a><span class="special">(</span><span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">RegexT</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 947     <span class="special">}</span>
 948   <span class="special">}</span>
 949 <span class="special">}</span></pre>
 950 </div>
 951 <div class="section">
 952 <div class="titlepage"><div><div><h4 class="title">
 953 <a name="header.boost.log.expressions.record_hpp"></a>Header &lt;<a href="../../../../boost/log/expressions/record.hpp" target="_top">boost/log/expressions/record.hpp</a>&gt;</h4></div></div></div>
 954 <p>Andrey Semashev </p>
 955 <p>
 956
 957 </p>
 958 <p>25.07.2012</p>
 959 <p>
 960
 961 The header contains implementation of a log record placeholder in template expressions. </p>
 962 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
 963   <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
 964     <span class="keyword">namespace</span> <span class="identifier">expressions</span> <span class="special">{</span>
 965       <span class="keyword">typedef</span> <span class="identifier">phoenix</span><span class="special">::</span><span class="identifier">expression</span><span class="special">::</span><span class="identifier">argument</span><span class="special">&lt;</span> <span class="number">1</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span> <a class="link" href="boost/log/expressions/record_type.html" title="Type definition record_type"><span class="identifier">record_type</span></a><span class="special">;</span>
 966
 967       <span class="keyword">const</span> <span class="identifier">record_type</span> <a class="link" href="boost/log/expressions/record.html" title="Global record">record</a><span class="special">;</span>
 968     <span class="special">}</span>
 969   <span class="special">}</span>
 970 <span class="special">}</span></pre>
 971 </div>
 972 </div>
 973 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 974 <td align="left"></td>
 975 <td align="right"><div class="copyright-footer">Copyright &#169; 2007-2016 Andrey Semashev<p>
 976         Distributed under the Boost Software License, Version 1.0. (See accompanying
 977         file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>).
 978       </p>
 979 </div></td>
 980 </tr></table>
 981 <hr>
 982 <div class="spirit-nav">
 983 <a accesskey="p" href="boost/log/value_visitor_invoker.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="log/reference.html"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="boost/log/expressions/attr_idm45711349917408.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a>
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