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  27 <a name="core.noinit_adaptor"></a><a class="link" href="noinit_adaptor.html" title="noinit_adaptor">noinit_adaptor</a>
  28 </h2></div></div></div>
  29 <div class="toc"><dl class="toc">
  30 <dt><span class="section"><a href="noinit_adaptor.html#core.noinit_adaptor.overview">Overview</a></span></dt>
  31 <dt><span class="section"><a href="noinit_adaptor.html#core.noinit_adaptor.examples">Examples</a></span></dt>
  32 <dt><span class="section"><a href="noinit_adaptor.html#core.noinit_adaptor.reference">Reference</a></span></dt>
  33 </dl></div>
  34 <div class="simplesect">
  35 <div class="titlepage"><div><div><h3 class="title">
  36 <a name="idm46687074894960"></a>Authors</h3></div></div></div>
  37 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
  38           Glen Fernandes
  39         </li></ul></div>
  40 </div>
  41 <div class="section">
  42 <div class="titlepage"><div><div><h3 class="title">
  43 <a name="core.noinit_adaptor.overview"></a><a class="link" href="noinit_adaptor.html#core.noinit_adaptor.overview" title="Overview">Overview</a>
  44 </h3></div></div></div>
  45 <p>
  46         The header &lt;boost/core/noinit_adaptor.hpp&gt; provides the class template
  47         <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">noinit_adaptor</span></code> that converts any allocator
  48         into one whose <code class="computeroutput"><span class="identifier">construct</span><span class="special">(</span><span class="identifier">ptr</span><span class="special">)</span></code>
  49         performs default initialization via placement new, and whose <code class="computeroutput"><span class="identifier">destroy</span><span class="special">(</span><span class="identifier">ptr</span><span class="special">)</span></code> invokes
  50         <code class="computeroutput"><span class="identifier">value_type</span></code> destructor directly.
  51       </p>
  52 </div>
  53 <div class="section">
  54 <div class="titlepage"><div><div><h3 class="title">
  55 <a name="core.noinit_adaptor.examples"></a><a class="link" href="noinit_adaptor.html#core.noinit_adaptor.examples" title="Examples">Examples</a>
  56 </h3></div></div></div>
  57 <p>
  58         The following example shows use of this allocator adaptor to achieve default
  59         initialization of elements of a trivial type, which are later assigned values.
  60       </p>
  61 <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">core</span><span class="special">/</span><span class="identifier">noinit_adaptor</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
  62 <span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">numeric</span><span class="special">&gt;</span>
  63 <span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">vector</span><span class="special">&gt;</span>
  64
  65 <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
  66 <span class="special">{</span>
  67     <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">v</span><span class="special">(</span><span class="number">5</span><span class="special">);</span>
  68     <span class="identifier">std</span><span class="special">::</span><span class="identifier">iota</span><span class="special">(</span><span class="identifier">v</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">v</span><span class="special">.</span><span class="identifier">end</span><span class="special">(),</span> <span class="number">1</span><span class="special">);</span>
  69 <span class="special">}</span>
  70 </pre>
  71 <p>
  72         The <code class="computeroutput"><span class="identifier">allocate_shared_noinit</span></code>
  73         function templates are now implemented simply using <code class="computeroutput"><span class="identifier">allocate_shared</span></code>
  74         with <code class="computeroutput"><span class="identifier">noinit_adaptor</span></code>.
  75       </p>
  76 <pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">A</span><span class="special">&gt;</span>
  77 <span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">is_unbounded_array_v</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;,</span> <span class="identifier">shared_ptr</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="special">&gt;</span>
  78 <span class="identifier">allocate_shared_noinit</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">size_t</span> <span class="identifier">n</span><span class="special">)</span>
  79 <span class="special">{</span>
  80     <span class="keyword">return</span> <span class="identifier">allocate_shared</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">noinit_adapt</span><span class="special">(</span><span class="identifier">a</span><span class="special">),</span> <span class="identifier">n</span><span class="special">);</span>
  81 <span class="special">}</span>
  82
  83 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">A</span><span class="special">&gt;</span>
  84 <span class="identifier">enable_if_t</span><span class="special">&lt;!</span><span class="identifier">is_unbounded_array_v</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;,</span> <span class="identifier">shared_ptr</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="special">&gt;</span>
  85 <span class="identifier">allocate_shared_noinit</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">)</span>
  86 <span class="special">{</span>
  87     <span class="keyword">return</span> <span class="identifier">allocate_shared</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">noinit_adapt</span><span class="special">(</span><span class="identifier">a</span><span class="special">));</span>
  88 <span class="special">}</span>
  89 </pre>
  90 </div>
  91 <div class="section">
  92 <div class="titlepage"><div><div><h3 class="title">
  93 <a name="core.noinit_adaptor.reference"></a><a class="link" href="noinit_adaptor.html#core.noinit_adaptor.reference" title="Reference">Reference</a>
  94 </h3></div></div></div>
  95 <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
  96
  97 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">&gt;</span>
  98 <span class="keyword">struct</span> <span class="identifier">noinit_adaptor</span>
  99     <span class="special">:</span> <span class="identifier">A</span> <span class="special">{</span>
 100     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span>
 101     <span class="keyword">struct</span> <span class="identifier">rebind</span> <span class="special">{</span>
 102         <span class="keyword">typedef</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="keyword">template</span>
 103             <span class="identifier">rebind_alloc</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">other</span><span class="special">;</span>
 104     <span class="special">};</span>
 105
 106     <span class="identifier">noinit_adaptor</span><span class="special">()</span> <span class="keyword">noexcept</span><span class="special">;</span>
 107
 108     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span>
 109     <span class="identifier">noinit_adaptor</span><span class="special">(</span><span class="identifier">U</span><span class="special">&amp;&amp;</span> <span class="identifier">u</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
 110
 111     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span>
 112     <span class="identifier">noinit_adaptor</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;&amp;</span> <span class="identifier">u</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
 113
 114     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span>
 115     <span class="keyword">void</span> <span class="identifier">construct</span><span class="special">(</span><span class="identifier">U</span><span class="special">*</span> <span class="identifier">p</span><span class="special">);</span>
 116
 117     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">V</span><span class="special">,</span> <span class="keyword">class</span><span class="special">...</span> <span class="identifier">Args</span><span class="special">&gt;</span>
 118     <span class="keyword">void</span> <span class="identifier">construct</span><span class="special">(</span><span class="identifier">U</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">V</span><span class="special">&amp;&amp;</span> <span class="identifier">v</span><span class="special">,</span> <span class="identifier">Args</span><span class="special">&amp;&amp;...</span> <span class="identifier">args</span><span class="special">);</span>
 119
 120     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span>
 121     <span class="keyword">void</span> <span class="identifier">destroy</span><span class="special">(</span><span class="identifier">U</span><span class="special">*</span> <span class="identifier">p</span><span class="special">);</span>
 122 <span class="special">};</span>
 123
 124 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span>
 125 <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==(</span><span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;</span> <span class="identifier">lhs</span><span class="special">,</span>
 126     <span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;&amp;</span> <span class="identifier">rhs</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
 127
 128 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span>
 129 <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!=(</span><span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;</span> <span class="identifier">lhs</span><span class="special">,</span>
 130     <span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;&amp;</span> <span class="identifier">rhs</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
 131
 132 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">&gt;</span>
 133 <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;</span> <span class="identifier">noinit_adapt</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
 134
 135 <span class="special">}</span> <span class="comment">/* boost */</span>
 136 </pre>
 137 <div class="section">
 138 <div class="titlepage"><div><div><h4 class="title">
 139 <a name="core.noinit_adaptor.reference.constructors"></a><a class="link" href="noinit_adaptor.html#core.noinit_adaptor.reference.constructors" title="Constructors">Constructors</a>
 140 </h4></div></div></div>
 141 <div class="variablelist">
 142 <p class="title"><b></b></p>
 143 <dl class="variablelist">
 144 <dt><span class="term"><code class="computeroutput"><span class="identifier">noinit_adaptor</span><span class="special">()</span> <span class="keyword">noexcept</span><span class="special">;</span></code></span></dt>
 145 <dd><div class="variablelist">
 146 <p class="title"><b></b></p>
 147 <dl class="variablelist">
 148 <dt><span class="term">Effects</span></dt>
 149 <dd><p>
 150                       Value initializes the A base class.
 151                     </p></dd>
 152 </dl>
 153 </div></dd>
 154 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="identifier">noinit_adaptor</span><span class="special">(</span><span class="identifier">U</span><span class="special">&amp;&amp;</span> <span class="identifier">u</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></code></span></dt>
 155 <dd><div class="variablelist">
 156 <p class="title"><b></b></p>
 157 <dl class="variablelist">
 158 <dt><span class="term">Requires</span></dt>
 159 <dd><p>
 160                       <code class="computeroutput"><span class="identifier">A</span></code> shall be
 161                       constructible from <code class="computeroutput"><span class="identifier">U</span></code>.
 162                     </p></dd>
 163 <dt><span class="term">Effects</span></dt>
 164 <dd><p>
 165                       Initializes the <code class="computeroutput"><span class="identifier">A</span></code>
 166                       base class with <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">forward</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;(</span><span class="identifier">u</span><span class="special">)</span></code>.
 167                     </p></dd>
 168 </dl>
 169 </div></dd>
 170 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="identifier">noinit_adaptor</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;&amp;</span>
 171             <span class="identifier">u</span><span class="special">)</span>
 172             <span class="keyword">noexcept</span><span class="special">;</span></code></span></dt>
 173 <dd><div class="variablelist">
 174 <p class="title"><b></b></p>
 175 <dl class="variablelist">
 176 <dt><span class="term">Requires</span></dt>
 177 <dd><p>
 178                       <code class="computeroutput"><span class="identifier">A</span></code> shall be
 179                       constructible from <code class="computeroutput"><span class="identifier">U</span></code>.
 180                     </p></dd>
 181 <dt><span class="term">Effects</span></dt>
 182 <dd><p>
 183                       Initializes the <code class="computeroutput"><span class="identifier">A</span></code>
 184                       base class with <code class="computeroutput"><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">const</span>
 185                       <span class="identifier">U</span><span class="special">&amp;&gt;(</span><span class="identifier">u</span><span class="special">)</span></code>.
 186                     </p></dd>
 187 </dl>
 188 </div></dd>
 189 </dl>
 190 </div>
 191 </div>
 192 <div class="section">
 193 <div class="titlepage"><div><div><h4 class="title">
 194 <a name="core.noinit_adaptor.reference.member_functions"></a><a class="link" href="noinit_adaptor.html#core.noinit_adaptor.reference.member_functions" title="Member functions">Member
 195         functions</a>
 196 </h4></div></div></div>
 197 <div class="variablelist">
 198 <p class="title"><b></b></p>
 199 <dl class="variablelist">
 200 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">void</span> <span class="identifier">construct</span><span class="special">(</span><span class="identifier">U</span><span class="special">*</span> <span class="identifier">p</span><span class="special">);</span></code></span></dt>
 201 <dd><div class="variablelist">
 202 <p class="title"><b></b></p>
 203 <dl class="variablelist">
 204 <dt><span class="term">Effects</span></dt>
 205 <dd><p>
 206                       <code class="computeroutput"><span class="special">::</span><span class="keyword">new</span><span class="special">((</span><span class="keyword">void</span><span class="special">*)</span><span class="identifier">p</span><span class="special">)</span> <span class="identifier">U</span></code>.
 207                     </p></dd>
 208 </dl>
 209 </div></dd>
 210 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">V</span><span class="special">,</span> <span class="keyword">class</span><span class="special">...</span> <span class="identifier">Args</span><span class="special">&gt;</span>
 211             <span class="keyword">void</span> <span class="identifier">construct</span><span class="special">(</span><span class="identifier">U</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">V</span><span class="special">&amp;&amp;</span> <span class="identifier">v</span><span class="special">,</span> <span class="identifier">Args</span><span class="special">&amp;&amp;...</span> <span class="identifier">args</span><span class="special">);</span></code></span></dt>
 212 <dd><div class="variablelist">
 213 <p class="title"><b></b></p>
 214 <dl class="variablelist">
 215 <dt><span class="term">Effects</span></dt>
 216 <dd><p>
 217                       <code class="computeroutput"><span class="special">::</span><span class="keyword">new</span><span class="special">(</span><span class="keyword">void</span><span class="special">*)</span><span class="identifier">p</span><span class="special">)</span> <span class="identifier">U</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">forward</span><span class="special">&lt;</span><span class="identifier">V</span><span class="special">&gt;(</span><span class="identifier">v</span><span class="special">),</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">forward</span><span class="special">&lt;</span><span class="identifier">Args</span><span class="special">&gt;(</span><span class="identifier">args</span><span class="special">)...)</span></code>.
 218                     </p></dd>
 219 </dl>
 220 </div></dd>
 221 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">void</span> <span class="identifier">destroy</span><span class="special">(</span><span class="identifier">U</span><span class="special">*</span> <span class="identifier">p</span><span class="special">);</span></code></span></dt>
 222 <dd><div class="variablelist">
 223 <p class="title"><b></b></p>
 224 <dl class="variablelist">
 225 <dt><span class="term">Effects</span></dt>
 226 <dd><p>
 227                       <code class="computeroutput"><span class="identifier">p</span><span class="special">-&gt;~</span><span class="identifier">U</span><span class="special">()</span></code>.
 228                     </p></dd>
 229 </dl>
 230 </div></dd>
 231 </dl>
 232 </div>
 233 </div>
 234 <div class="section">
 235 <div class="titlepage"><div><div><h4 class="title">
 236 <a name="core.noinit_adaptor.reference.operators"></a><a class="link" href="noinit_adaptor.html#core.noinit_adaptor.reference.operators" title="Operators">Operators</a>
 237 </h4></div></div></div>
 238 <div class="variablelist">
 239 <p class="title"><b></b></p>
 240 <dl class="variablelist">
 241 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">bool</span>
 242             <span class="keyword">operator</span><span class="special">==(</span><span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;&amp;</span>
 243             <span class="identifier">rhs</span><span class="special">)</span>
 244             <span class="keyword">noexcept</span><span class="special">;</span></code></span></dt>
 245 <dd><div class="variablelist">
 246 <p class="title"><b></b></p>
 247 <dl class="variablelist">
 248 <dt><span class="term">Returns</span></dt>
 249 <dd><p>
 250                       <code class="computeroutput"><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;&gt;(</span><span class="identifier">lhs</span><span class="special">)</span> <span class="special">==</span>
 251                       <span class="keyword">static_cast</span><span class="special">&lt;</span><span class="keyword">const</span> <span class="identifier">U</span><span class="special">&amp;&gt;(</span><span class="identifier">rhs</span><span class="special">)</span></code>.
 252                     </p></dd>
 253 </dl>
 254 </div></dd>
 255 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">U</span><span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">bool</span>
 256             <span class="keyword">operator</span><span class="special">!=(</span><span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;&amp;</span>
 257             <span class="identifier">rhs</span><span class="special">)</span>
 258             <span class="keyword">noexcept</span><span class="special">;</span></code></span></dt>
 259 <dd><div class="variablelist">
 260 <p class="title"><b></b></p>
 261 <dl class="variablelist">
 262 <dt><span class="term">Returns</span></dt>
 263 <dd><p>
 264                       <code class="computeroutput"><span class="special">!(</span><span class="identifier">lhs</span>
 265                       <span class="special">==</span> <span class="identifier">rhs</span><span class="special">)</span></code>.
 266                     </p></dd>
 267 </dl>
 268 </div></dd>
 269 </dl>
 270 </div>
 271 </div>
 272 <div class="section">
 273 <div class="titlepage"><div><div><h4 class="title">
 274 <a name="core.noinit_adaptor.reference.free_functions"></a><a class="link" href="noinit_adaptor.html#core.noinit_adaptor.reference.free_functions" title="Free functions">Free
 275         functions</a>
 276 </h4></div></div></div>
 277 <div class="variablelist">
 278 <p class="title"><b></b></p>
 279 <dl class="variablelist">
 280 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">&gt;</span> <span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;</span> <span class="identifier">noinit_adapt</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></code></span></dt>
 281 <dd><div class="variablelist">
 282 <p class="title"><b></b></p>
 283 <dl class="variablelist">
 284 <dt><span class="term">Returns</span></dt>
 285 <dd><p>
 286                       <code class="computeroutput"><span class="identifier">noinit_adaptor</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;(</span><span class="identifier">a</span><span class="special">)</span></code>.
 287                     </p></dd>
 288 </dl>
 289 </div></dd>
 290 </dl>
 291 </div>
 292 </div>
 293 </div>
 294 </div>
 295 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 296 <td align="left"></td>
 297 <td align="right"><div class="copyright-footer">Copyright &#169; 2014 Peter Dimov<br>Copyright &#169; 2014 Glen Fernandes<br>Copyright &#169; 2014 Andrey Semashev<p>
 298         Distributed under the <a href="http://boost.org/LICENSE_1_0.txt" target="_top">Boost
 299         Software License, Version 1.0</a>.
 300       </p>
 301 </div></td>
 302 </tr></table>
 303 <hr>
 304 <div class="spirit-nav">
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