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  26 <div class="refentry">
  27 <a name="boost.interprocess.basic_ibufferstream"></a><div class="titlepage"></div>
  28 <div class="refnamediv">
  29 <h2><span class="refentrytitle">Class template basic_ibufferstream</span></h2>
  30 <p>boost::interprocess::basic_ibufferstream</p>
  31 </div>
  32 <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
  33 <div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../interprocess/indexes_reference.html#header.boost.interprocess.streams.bufferstream_hpp" title="Header &lt;boost/interprocess/streams/bufferstream.hpp&gt;">boost/interprocess/streams/bufferstream.hpp</a>&gt;
  34
  35 </span><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> CharTraits<span class="special">&gt;</span>
  36 <span class="keyword">class</span> <a class="link" href="basic_ibufferstream.html" title="Class template basic_ibufferstream">basic_ibufferstream</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">CharTraits</span> <span class="special">&gt;</span> <span class="special">{</span>
  37 <span class="keyword">public</span><span class="special">:</span>
  38   <span class="comment">// types</span>
  39   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ios</span><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">CharTraits</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">char_type</span>       <a name="boost.interprocess.basic_ibufferstream.char_type"></a><span class="identifier">char_type</span><span class="special">;</span>
  40   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ios</span><span class="special">&lt;</span> <span class="identifier">char_type</span><span class="special">,</span> <span class="identifier">CharTraits</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">int_type</span>    <a name="boost.interprocess.basic_ibufferstream.int_type"></a><span class="identifier">int_type</span><span class="special">;</span>
  41   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ios</span><span class="special">&lt;</span> <span class="identifier">char_type</span><span class="special">,</span> <span class="identifier">CharTraits</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">pos_type</span>    <a name="boost.interprocess.basic_ibufferstream.pos_type"></a><span class="identifier">pos_type</span><span class="special">;</span>
  42   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ios</span><span class="special">&lt;</span> <span class="identifier">char_type</span><span class="special">,</span> <span class="identifier">CharTraits</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">off_type</span>    <a name="boost.interprocess.basic_ibufferstream.off_type"></a><span class="identifier">off_type</span><span class="special">;</span>
  43   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ios</span><span class="special">&lt;</span> <span class="identifier">char_type</span><span class="special">,</span> <span class="identifier">CharTraits</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">traits_type</span> <a name="boost.interprocess.basic_ibufferstream.traits_type"></a><span class="identifier">traits_type</span><span class="special">;</span>
  44
  45   <span class="comment">// <a class="link" href="basic_ibufferstream.html#boost.interprocess.basic_ibufferstreamconstruct-copy-destruct">construct/copy/destruct</a></span>
  46   <a class="link" href="basic_ibufferstream.html#idm45336640823968-bb"><span class="identifier">basic_ibufferstream</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ios_base</span><span class="special">::</span><span class="identifier">openmode</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ios_base</span><span class="special">::</span><span class="identifier">in</span><span class="special">)</span><span class="special">;</span>
  47   <a class="link" href="basic_ibufferstream.html#idm45336640822272-bb"><span class="identifier">basic_ibufferstream</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="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">,</span>
  48                       <span class="identifier">std</span><span class="special">::</span><span class="identifier">ios_base</span><span class="special">::</span><span class="identifier">openmode</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ios_base</span><span class="special">::</span><span class="identifier">in</span><span class="special">)</span><span class="special">;</span>
  49   <a class="link" href="basic_ibufferstream.html#idm45336640819168-bb"><span class="special">~</span><span class="identifier">basic_ibufferstream</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  50
  51   <span class="comment">// <a class="link" href="basic_ibufferstream.html#idm45336640830848-bb">public member functions</a></span>
  52   <a class="link" href="basic_bufferbuf.html" title="Class template basic_bufferbuf">basic_bufferbuf</a><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">CharTraits</span> <span class="special">&gt;</span> <span class="special">*</span> <a class="link" href="basic_ibufferstream.html#idm45336640830288-bb"><span class="identifier">rdbuf</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  53   <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="special">&gt;</span> <a class="link" href="basic_ibufferstream.html#idm45336640828432-bb"><span class="identifier">buffer</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  54   <span class="keyword">void</span> <a class="link" href="basic_ibufferstream.html#idm45336640826832-bb"><span class="identifier">buffer</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="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
  55 <span class="special">}</span><span class="special">;</span></pre></div>
  56 <div class="refsect1">
  57 <a name="id-1.3.19.17.3.55.6.4"></a><h2>Description</h2>
  58 <p>A basic_istream class that uses a fixed size character buffer as its formatting buffer. </p>
  59 <div class="refsect2">
  60 <a name="id-1.3.19.17.3.55.6.4.3"></a><h3>
  61 <a name="boost.interprocess.basic_ibufferstreamconstruct-copy-destruct"></a><code class="computeroutput">basic_ibufferstream</code>
  62         public
  63        construct/copy/destruct</h3>
  64 <div class="orderedlist"><ol class="orderedlist" type="1">
  65 <li class="listitem">
  66 <pre class="literallayout"><a name="idm45336640823968-bb"></a><span class="identifier">basic_ibufferstream</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ios_base</span><span class="special">::</span><span class="identifier">openmode</span> mode <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ios_base</span><span class="special">::</span><span class="identifier">in</span><span class="special">)</span><span class="special">;</span></pre>
  67 <p>Constructor. Does not throw. </p>
  68 </li>
  69 <li class="listitem">
  70 <pre class="literallayout"><a name="idm45336640822272-bb"></a><span class="identifier">basic_ibufferstream</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span> buf<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> length<span class="special">,</span>
  71                     <span class="identifier">std</span><span class="special">::</span><span class="identifier">ios_base</span><span class="special">::</span><span class="identifier">openmode</span> mode <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ios_base</span><span class="special">::</span><span class="identifier">in</span><span class="special">)</span><span class="special">;</span></pre>
  72 <p>Constructor. Assigns formatting buffer. Does not throw. </p>
  73 </li>
  74 <li class="listitem"><pre class="literallayout"><a name="idm45336640819168-bb"></a><span class="special">~</span><span class="identifier">basic_ibufferstream</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
  75 </ol></div>
  76 </div>
  77 <div class="refsect2">
  78 <a name="id-1.3.19.17.3.55.6.4.4"></a><h3>
  79 <a name="idm45336640830848-bb"></a><code class="computeroutput">basic_ibufferstream</code> public member functions</h3>
  80 <div class="orderedlist"><ol class="orderedlist" type="1">
  81 <li class="listitem">
  82 <pre class="literallayout"><a class="link" href="basic_bufferbuf.html" title="Class template basic_bufferbuf">basic_bufferbuf</a><span class="special">&lt;</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">CharTraits</span> <span class="special">&gt;</span> <span class="special">*</span> <a name="idm45336640830288-bb"></a><span class="identifier">rdbuf</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
  83 <p>Returns the address of the stored stream buffer. </p>
  84 </li>
  85 <li class="listitem">
  86 <pre class="literallayout"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="special">&gt;</span> <a name="idm45336640828432-bb"></a><span class="identifier">buffer</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
  87 <p>Returns the pointer and size of the internal buffer. Does not throw. </p>
  88 </li>
  89 <li class="listitem">
  90 <pre class="literallayout"><span class="keyword">void</span> <a name="idm45336640826832-bb"></a><span class="identifier">buffer</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">CharT</span> <span class="special">*</span> buf<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> length<span class="special">)</span><span class="special">;</span></pre>
  91 <p>Sets the underlying buffer to a new value. Resets stream position. Does not throw. </p>
  92 </li>
  93 </ol></div>
  94 </div>
  95 </div>
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