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1 | <html> |
| 2 | <head> | |
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> | |
| 4 | <title>Class captured_context</title> | |
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| 23 | <a accesskey="p" href="econtext.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../abstract_context.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="stack.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> | |
| 24 | </div> | |
| 25 | <div class="section"> | |
| 26 | <div class="titlepage"><div><div><h3 class="title"> | |
| 27 | <a name="context.abstract_context.ccontext"></a><a class="link" href="ccontext.html" title="Class captured_context">Class captured_context</a> | |
| 28 | </h3></div></div></div> | |
| 29 | <div class="important"><table border="0" summary="Important"> | |
| 30 | <tr> | |
| 31 | <td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="../../../../../../doc/src/images/important.png"></td> | |
| 32 | <th align="left">Important</th> | |
| 33 | </tr> | |
| 34 | <tr><td align="left" valign="top"><p> | |
| 35 | <span class="emphasis"><em>captured_context</em></span> requires C++11! | |
| 36 | </p></td></tr> | |
| 37 | </table></div> | |
| 38 | <p> | |
| 39 | Class <span class="emphasis"><em>captured_context</em></span> encapsulates <span class="emphasis"><em>fcontext_t</em></span> | |
| 40 | and manages the context' stack (allocation/deallocation). | |
| 41 | </p> | |
| 42 | <p> | |
| 43 | <span class="emphasis"><em>captured_context</em></span> allocates the context stack (using | |
| 44 | its <span class="emphasis"><em>StackAllocator</em></span> argument) and creates a control structure | |
| 45 | on top of it. This structure controls the life time of the stack. The address | |
| 46 | of the control structure is stored in the first frame of context' stack (e.g. | |
| 47 | it can not accessed by instances of <span class="emphasis"><em>captured_context</em></span> | |
| 48 | directly). In contrast to <span class="emphasis"><em>execution_context</em></span> the ownership | |
| 49 | of the control structure is not shared A call of<span class="emphasis"><em>captured_context::operator()</em></span> | |
| 50 | enters the context represented by <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> and invalidates <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. The context that has been suspended | |
| 51 | by calling <span class="emphasis"><em>captured_context::operator()</em></span> is passed to | |
| 52 | the resumed context, e.g. as argument of the context-function if the context | |
| 53 | was resumed the first time or returned by <span class="emphasis"><em>captured_context::operator()</em></span>. | |
| 54 | <span class="emphasis"><em>captured_context</em></span> is only move-constructible and move-assignable. | |
| 55 | If the last reference (<span class="emphasis"><em>captured_context</em></span>) goes out of | |
| 56 | scope, the control structure is destroyed and the stack gets deallocated | |
| 57 | via the <span class="emphasis"><em>StackAllocator</em></span>. <span class="emphasis"><em>captured_context</em></span> | |
| 58 | maintains a static, thread-local pointer (smart pointer), accessed by <span class="emphasis"><em>execution_context::current()</em></span>, | |
| 59 | pointing to the active context. On each context switch the static, thread-local | |
| 60 | pointer is updated. This makes the context switch a little bit slower, but | |
| 61 | enables faster context destruction (stack unwinding) compared to <span class="emphasis"><em>captured_context</em></span>. | |
| 62 | </p> | |
| 63 | <p> | |
| 64 | <span class="emphasis"><em>captured_context</em></span> expects a function/functor with signature | |
| 65 | <code class="computeroutput"><span class="identifier">captured_context</span><span class="special">(</span> | |
| 66 | <span class="identifier">captured_context</span> <span class="identifier">ctx</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">*</span> | |
| 67 | <span class="identifier">vp</span><span class="special">)</span></code>. | |
| 68 | The parameter <code class="computeroutput"><span class="identifier">ctx</span></code> represents | |
| 69 | the context from which this context was resumed (e.g. that has called <span class="emphasis"><em>captured_context::operator()</em></span> | |
| 70 | on <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>) | |
| 71 | and <code class="computeroutput"><span class="identifier">vp</span></code> is the data passed | |
| 72 | to <span class="emphasis"><em>captured_context::operator()</em></span>. The function/functor | |
| 73 | has to return the captured_context that has to be resumed, while this context | |
| 74 | terminates. | |
| 75 | </p> | |
| 76 | <div class="important"><table border="0" summary="Important"> | |
| 77 | <tr> | |
| 78 | <td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="../../../../../../doc/src/images/important.png"></td> | |
| 79 | <th align="left">Important</th> | |
| 80 | </tr> | |
| 81 | <tr><td align="left" valign="top"><p> | |
| 82 | Segemnted stacks are not supported together with <span class="emphasis"><em>captured_context</em></span>. | |
| 83 | </p></td></tr> | |
| 84 | </table></div> | |
| 85 | <h5> | |
| 86 | <a name="context.abstract_context.ccontext.h0"></a> | |
| 87 | <span><a name="context.abstract_context.ccontext.usage_of__emphasis_captured_context__emphasis_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext.usage_of__emphasis_captured_context__emphasis_">usage | |
| 88 | of <span class="emphasis"><em>captured_context</em></span></a> | |
| 89 | </h5> | |
| 90 | <pre class="programlisting"><span class="comment">/* | |
| 91 | * grammar: | |
| 92 | * P ---> E '\0' | |
| 93 | * E ---> T {('+'|'-') T} | |
| 94 | * T ---> S {('*'|'/') S} | |
| 95 | * S ---> digit | '(' E ')' | |
| 96 | */</span> | |
| 97 | <span class="keyword">class</span> <span class="identifier">Parser</span><span class="special">{</span> | |
| 98 | <span class="comment">// implementation omitted; see examples directory</span> | |
| 99 | <span class="special">};</span> | |
| 100 | ||
| 101 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">istringstream</span> <span class="identifier">is</span><span class="special">(</span><span class="string">"1+1"</span><span class="special">);</span> | |
| 102 | <span class="keyword">bool</span> <span class="identifier">done</span><span class="special">=</span><span class="keyword">false</span><span class="special">;</span> | |
| 103 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">exception_ptr</span> <span class="identifier">except</span><span class="special">;</span> | |
| 104 | ||
| 105 | <span class="comment">// execute parser in new execution context</span> | |
| 106 | <span class="identifier">boost</span><span class="special">::</span><span class="identifier">context</span><span class="special">::</span><span class="identifier">captured_context</span> <span class="identifier">pctx</span><span class="special">(</span> | |
| 107 | <span class="special">[&</span><span class="identifier">is</span><span class="special">,&</span><span class="identifier">done</span><span class="special">,&</span><span class="identifier">except</span><span class="special">](</span><span class="identifier">ctx</span><span class="special">::</span><span class="identifier">captured_context</span> <span class="identifier">mctx</span><span class="special">,</span><span class="keyword">void</span><span class="special">*</span> <span class="identifier">ignored</span><span class="special">){</span> | |
| 108 | <span class="comment">// create parser with callback function</span> | |
| 109 | <span class="identifier">Parser</span> <span class="identifier">p</span><span class="special">(</span> <span class="identifier">is</span><span class="special">,</span> | |
| 110 | <span class="special">[&</span><span class="identifier">mctx</span><span class="special">](</span><span class="keyword">char</span> <span class="identifier">ch</span><span class="special">){</span> | |
| 111 | <span class="comment">// resume main execution context</span> | |
| 112 | <span class="keyword">auto</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">mctx</span><span class="special">(</span> <span class="special">&</span> <span class="identifier">ch</span><span class="special">);</span> | |
| 113 | <span class="identifier">mctx</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">move</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">get</span><span class="special"><</span><span class="number">0</span><span class="special">>(</span> <span class="identifier">result</span><span class="special">)</span> <span class="special">);</span> | |
| 114 | <span class="special">});</span> | |
| 115 | <span class="keyword">try</span> <span class="special">{</span> | |
| 116 | <span class="comment">// start recursive parsing</span> | |
| 117 | <span class="identifier">p</span><span class="special">.</span><span class="identifier">run</span><span class="special">();</span> | |
| 118 | <span class="special">}</span> <span class="keyword">catch</span> <span class="special">(</span> <span class="special">...</span> <span class="special">)</span> <span class="special">{</span> | |
| 119 | <span class="comment">// store other exceptions in exception-pointer</span> | |
| 120 | <span class="identifier">except</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">current_exception</span><span class="special">();</span> | |
| 121 | <span class="special">}</span> | |
| 122 | <span class="comment">// set termination flag</span> | |
| 123 | <span class="identifier">done</span><span class="special">=</span><span class="keyword">true</span><span class="special">;</span> | |
| 124 | <span class="comment">// resume main execution context</span> | |
| 125 | <span class="keyword">return</span> <span class="identifier">mctx</span><span class="special">;</span> | |
| 126 | <span class="special">});</span> | |
| 127 | ||
| 128 | <span class="comment">// user-code pulls parsed data from parser</span> | |
| 129 | <span class="comment">// invert control flow</span> | |
| 130 | <span class="keyword">auto</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">pctx</span><span class="special">();</span> | |
| 131 | <span class="identifier">pctx</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">move</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">get</span><span class="special"><</span><span class="number">0</span><span class="special">>(</span> <span class="identifier">result</span><span class="special">)</span> <span class="special">);</span> | |
| 132 | <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">vp</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">get</span><span class="special"><</span><span class="number">1</span><span class="special">>(</span> <span class="identifier">result</span><span class="special">);</span> | |
| 133 | <span class="keyword">if</span> <span class="special">(</span> <span class="identifier">except</span><span class="special">)</span> <span class="special">{</span> | |
| 134 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">rethrow_exception</span><span class="special">(</span> <span class="identifier">except</span><span class="special">);</span> | |
| 135 | <span class="special">}</span> | |
| 136 | <span class="keyword">while</span><span class="special">(</span> <span class="special">!</span> <span class="identifier">done</span><span class="special">)</span> <span class="special">{</span> | |
| 137 | <span class="identifier">printf</span><span class="special">(</span><span class="string">"Parsed: %c\n"</span><span class="special">,*</span> <span class="keyword">static_cast</span><span class="special"><</span> <span class="keyword">char</span><span class="special">*</span> <span class="special">>(</span> <span class="identifier">vp</span><span class="special">)</span> <span class="special">);</span> | |
| 138 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">tie</span><span class="special">(</span><span class="identifier">pctx</span><span class="special">,</span><span class="identifier">vp</span><span class="special">)</span> <span class="special">=</span> <span class="identifier">pctx</span><span class="special">();</span> | |
| 139 | <span class="keyword">if</span> <span class="special">(</span> <span class="identifier">except</span><span class="special">)</span> <span class="special">{</span> | |
| 140 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">rethrow_exception</span><span class="special">(</span> <span class="identifier">except</span><span class="special">);</span> | |
| 141 | <span class="special">}</span> | |
| 142 | <span class="special">}</span> | |
| 143 | ||
| 144 | <span class="identifier">output</span><span class="special">:</span> | |
| 145 | <span class="identifier">Parsed</span><span class="special">:</span> <span class="number">1</span> | |
| 146 | <span class="identifier">Parsed</span><span class="special">:</span> <span class="special">+</span> | |
| 147 | <span class="identifier">Parsed</span><span class="special">:</span> <span class="number">1</span> | |
| 148 | </pre> | |
| 149 | <p> | |
| 150 | In this example a recursive descent parser uses a callback to emit a newly | |
| 151 | passed symbol. Using <span class="emphasis"><em>captured_context</em></span> the control flow | |
| 152 | can be inverted, e.g. the user-code pulls parsed symbols from the parser | |
| 153 | - instead to get pushed from the parser (via callback). | |
| 154 | </p> | |
| 155 | <p> | |
| 156 | The data (character) is transferred between the two <span class="emphasis"><em>captured_context</em></span>. | |
| 157 | </p> | |
| 158 | <p> | |
| 159 | If the code executed by <span class="emphasis"><em>captured_context</em></span> emits an exception, | |
| 160 | the application is terminated. <span class="emphasis"><em>std::exception_ptr</em></span> can | |
| 161 | be used to transfer exceptions between different execution contexts. | |
| 162 | </p> | |
| 163 | <p> | |
| 164 | Sometimes it is necessary to unwind the stack of an unfinished context to | |
| 165 | destroy local stack variables so they can release allocated resources (RAII | |
| 166 | pattern). The user is responsible for this task. | |
| 167 | </p> | |
| 168 | <h5> | |
| 169 | <a name="context.abstract_context.ccontext.h1"></a> | |
| 170 | <span><a name="context.abstract_context.ccontext.allocating_control_structures_on_top_of_stack"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext.allocating_control_structures_on_top_of_stack">allocating | |
| 171 | control structures on top of stack</a> | |
| 172 | </h5> | |
| 173 | <p> | |
| 174 | Allocating control structures on top of the stack requires to allocated the | |
| 175 | <span class="emphasis"><em>stack_context</em></span> and create the control structure with | |
| 176 | placement new before <span class="emphasis"><em>captured_context</em></span> is created. | |
| 177 | </p> | |
| 178 | <div class="note"><table border="0" summary="Note"> | |
| 179 | <tr> | |
| 180 | <td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../doc/src/images/note.png"></td> | |
| 181 | <th align="left">Note</th> | |
| 182 | </tr> | |
| 183 | <tr><td align="left" valign="top"><p> | |
| 184 | The user is responsible for destructing the control structure at the top | |
| 185 | of the stack. | |
| 186 | </p></td></tr> | |
| 187 | </table></div> | |
| 188 | <pre class="programlisting"><span class="comment">// stack-allocator used for (de-)allocating stack</span> | |
| 189 | <span class="identifier">fixedsize_stack</span> <span class="identifier">salloc</span><span class="special">(</span> <span class="number">4048</span><span class="special">);</span> | |
| 190 | <span class="comment">// allocate stack space</span> | |
| 191 | <span class="identifier">stack_context</span> <span class="identifier">sctx</span><span class="special">(</span> <span class="identifier">salloc</span><span class="special">.</span><span class="identifier">allocate</span><span class="special">()</span> <span class="special">);</span> | |
| 192 | <span class="comment">// reserve space for control structure on top of the stack</span> | |
| 193 | <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">sp</span> <span class="special">=</span> <span class="keyword">static_cast</span><span class="special"><</span> <span class="keyword">char</span> <span class="special">*</span> <span class="special">>(</span> <span class="identifier">sctx</span><span class="special">.</span><span class="identifier">sp</span><span class="special">)</span> <span class="special">-</span> <span class="keyword">sizeof</span><span class="special">(</span> <span class="identifier">my_control_structure</span><span class="special">);</span> | |
| 194 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">size</span> <span class="special">=</span> <span class="identifier">sctx</span><span class="special">.</span><span class="identifier">size</span> <span class="special">-</span> <span class="keyword">sizeof</span><span class="special">(</span> <span class="identifier">my_control_structure</span><span class="special">);</span> | |
| 195 | <span class="comment">// placement new creates control structure on reserved space</span> | |
| 196 | <span class="identifier">my_control_structure</span> <span class="special">*</span> <span class="identifier">cs</span> <span class="special">=</span> <span class="keyword">new</span> <span class="special">(</span> <span class="identifier">sp</span><span class="special">)</span> <span class="identifier">my_control_structure</span><span class="special">(</span> <span class="identifier">sp</span><span class="special">,</span> <span class="identifier">size</span><span class="special">,</span> <span class="identifier">sctx</span><span class="special">,</span> <span class="identifier">salloc</span><span class="special">);</span> | |
| 197 | <span class="special">...</span> | |
| 198 | <span class="comment">// destructing the control structure</span> | |
| 199 | <span class="identifier">cs</span><span class="special">->~</span><span class="identifier">my_control_structure</span><span class="special">();</span> | |
| 200 | <span class="special">...</span> | |
| 201 | <span class="keyword">struct</span> <span class="identifier">my_control_structure</span> <span class="special">{</span> | |
| 202 | <span class="comment">// captured context</span> | |
| 203 | <span class="identifier">captured_context</span> <span class="identifier">cctx</span><span class="special">;</span> | |
| 204 | ||
| 205 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">StackAllocator</span> <span class="special">></span> | |
| 206 | <span class="identifier">my_control_structure</span><span class="special">(</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">sp</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span> <span class="identifier">stack_context</span> <span class="identifier">sctx</span><span class="special">,</span> <span class="identifier">StackAllocator</span> <span class="identifier">salloc</span><span class="special">)</span> <span class="special">:</span> | |
| 207 | <span class="comment">// create captured context</span> | |
| 208 | <span class="identifier">cctx</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_arg</span><span class="special">,</span> <span class="identifier">preallocated</span><span class="special">(</span> <span class="identifier">sp</span><span class="special">,</span> <span class="identifier">size</span><span class="special">,</span> <span class="identifier">sctx</span><span class="special">),</span> <span class="identifier">salloc</span><span class="special">,</span> <span class="identifier">entry_func</span><span class="special">)</span> <span class="special">{</span> | |
| 209 | <span class="special">}</span> | |
| 210 | <span class="special">...</span> | |
| 211 | <span class="special">};</span> | |
| 212 | </pre> | |
| 213 | <h5> | |
| 214 | <a name="context.abstract_context.ccontext.h2"></a> | |
| 215 | <span><a name="context.abstract_context.ccontext.exception_handling"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext.exception_handling">exception | |
| 216 | handling</a> | |
| 217 | </h5> | |
| 218 | <p> | |
| 219 | If the function executed inside a <span class="emphasis"><em>captured_context</em></span> emits | |
| 220 | ans exception, the application is terminated by calling ['std::terminate(). | |
| 221 | <span class="emphasis"><em>std::exception_ptr</em></span> can be used to transfer exceptions | |
| 222 | between different execution contexts. | |
| 223 | </p> | |
| 224 | <h5> | |
| 225 | <a name="context.abstract_context.ccontext.h3"></a> | |
| 226 | <span><a name="context.abstract_context.ccontext.parameter_passing"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext.parameter_passing">parameter | |
| 227 | passing</a> | |
| 228 | </h5> | |
| 229 | <p> | |
| 230 | The void pointer argument passed to <span class="emphasis"><em>captured_context::operator()</em></span>, | |
| 231 | in one context, is passed as the last argument of the <span class="emphasis"><em>context-function</em></span> | |
| 232 | if the context is started for the first time. In all following invocations | |
| 233 | of <span class="emphasis"><em>captured_context::operator()</em></span> the void pointer passed | |
| 234 | to <span class="emphasis"><em>captured_context::operator()</em></span>, in one context, is | |
| 235 | returned by <span class="emphasis"><em>captured_context::operator()</em></span> in the other | |
| 236 | context. | |
| 237 | </p> | |
| 238 | <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">X</span> <span class="special">{</span> | |
| 239 | <span class="keyword">private</span><span class="special">:</span> | |
| 240 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">exception_ptr</span> <span class="identifier">excptr_</span><span class="special">;</span> | |
| 241 | <span class="identifier">boost</span><span class="special">::</span><span class="identifier">context</span><span class="special">::</span><span class="identifier">captured_context</span> <span class="identifier">ctx_</span><span class="special">;</span> | |
| 242 | ||
| 243 | <span class="keyword">public</span><span class="special">:</span> | |
| 244 | <span class="identifier">X</span><span class="special">()</span> <span class="special">:</span> | |
| 245 | <span class="identifier">excptr_</span><span class="special">(),</span> | |
| 246 | <span class="identifier">ctx_</span><span class="special">(</span> <span class="special">[=](</span><span class="identifier">ctx</span><span class="special">::</span><span class="identifier">captured_context</span> <span class="identifier">ctx</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">vp</span><span class="special">)-></span><span class="identifier">ctx</span><span class="special">::</span><span class="identifier">captured_context</span><span class="special">{</span> | |
| 247 | <span class="keyword">try</span> <span class="special">{</span> | |
| 248 | <span class="keyword">for</span> <span class="special">(;;)</span> <span class="special">{</span> | |
| 249 | <span class="keyword">int</span> <span class="identifier">i</span> <span class="special">=</span> <span class="special">*</span> <span class="keyword">static_cast</span><span class="special"><</span> <span class="keyword">int</span> <span class="special">*</span> <span class="special">>(</span> <span class="identifier">vp</span><span class="special">);</span> | |
| 250 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">str</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">lexical_cast</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">>(</span><span class="identifier">i</span><span class="special">);</span> | |
| 251 | <span class="keyword">auto</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">ctx</span><span class="special">(</span> <span class="special">&</span> <span class="identifier">str</span><span class="special">);</span> | |
| 252 | <span class="identifier">ctx</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">move</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">get</span><span class="special"><</span><span class="number">0</span><span class="special">>(</span> <span class="identifier">result</span><span class="special">)</span> <span class="special">);</span> | |
| 253 | <span class="identifier">vp</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">get</span><span class="special"><</span><span class="number">1</span><span class="special">>(</span> <span class="identifier">result</span><span class="special">);</span> | |
| 254 | <span class="special">}</span> | |
| 255 | <span class="special">}</span> <span class="keyword">catch</span> <span class="special">(</span> <span class="identifier">ctx</span><span class="special">::</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">forced_unwind</span> <span class="keyword">const</span><span class="special">&)</span> <span class="special">{</span> | |
| 256 | <span class="keyword">throw</span><span class="special">;</span> | |
| 257 | <span class="special">}</span> <span class="keyword">catch</span> <span class="special">(...)</span> <span class="special">{</span> | |
| 258 | <span class="identifier">excptr_</span><span class="special">=</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">current_exception</span><span class="special">();</span> | |
| 259 | <span class="special">}</span> | |
| 260 | <span class="keyword">return</span> <span class="identifier">ctx</span><span class="special">;</span> | |
| 261 | <span class="special">})</span> | |
| 262 | <span class="special">{}</span> | |
| 263 | ||
| 264 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">operator</span><span class="special">()(</span> <span class="keyword">int</span> <span class="identifier">i</span><span class="special">)</span> <span class="special">{</span> | |
| 265 | <span class="keyword">auto</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">ctx_</span><span class="special">(</span> <span class="special">&</span> <span class="identifier">i</span><span class="special">);</span> | |
| 266 | <span class="identifier">ctx_</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">move</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">get</span><span class="special"><</span><span class="number">0</span><span class="special">>(</span> <span class="identifier">result</span><span class="special">)</span> <span class="special">);</span> | |
| 267 | <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">ret</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">get</span><span class="special"><</span><span class="number">1</span><span class="special">>(</span> <span class="identifier">result</span><span class="special">);</span> | |
| 268 | <span class="keyword">if</span><span class="special">(</span><span class="identifier">excptr_</span><span class="special">){</span> | |
| 269 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">rethrow_exception</span><span class="special">(</span><span class="identifier">excptr_</span><span class="special">);</span> | |
| 270 | <span class="special">}</span> | |
| 271 | <span class="keyword">return</span> <span class="special">*</span> <span class="keyword">static_cast</span><span class="special"><</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">*</span> <span class="special">>(</span> <span class="identifier">ret</span><span class="special">);</span> | |
| 272 | <span class="special">}</span> | |
| 273 | <span class="special">};</span> | |
| 274 | ||
| 275 | <span class="identifier">X</span> <span class="identifier">x</span><span class="special">;</span> | |
| 276 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">x</span><span class="special">(</span> <span class="number">7</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> | |
| 277 | ||
| 278 | <span class="identifier">output</span><span class="special">:</span> | |
| 279 | <span class="number">7</span> | |
| 280 | </pre> | |
| 281 | <h5> | |
| 282 | <a name="context.abstract_context.ccontext.h4"></a> | |
| 283 | <span><a name="context.abstract_context.ccontext.class__code__phrase_role__identifier__captured_context__phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext.class__code__phrase_role__identifier__captured_context__phrase___code_">Class | |
| 284 | <code class="computeroutput"><span class="identifier">captured_context</span></code></a> | |
| 285 | </h5> | |
| 286 | <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">captured_context</span> <span class="special">{</span> | |
| 287 | <span class="keyword">public</span><span class="special">:</span> | |
| 288 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> | |
| 289 | <span class="identifier">captured_context</span><span class="special">(</span> <span class="identifier">Fn</span> <span class="special">&&</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> <span class="special">...</span> <span class="identifier">args</span><span class="special">);</span> | |
| 290 | ||
| 291 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">StackAlloc</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> | |
| 292 | <span class="identifier">captured_context</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_arg_t</span><span class="special">,</span> <span class="identifier">StackAlloc</span> <span class="identifier">salloc</span><span class="special">,</span> <span class="identifier">Fn</span> <span class="special">&&</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> <span class="special">...</span> <span class="identifier">args</span><span class="special">);</span> | |
| 293 | ||
| 294 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">StackAlloc</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> | |
| 295 | <span class="identifier">captured_context</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_arg_t</span><span class="special">,</span> <span class="identifier">preallocated</span> <span class="identifier">palloc</span><span class="special">,</span> <span class="identifier">StackAlloc</span> <span class="identifier">salloc</span><span class="special">,</span> <span class="identifier">Fn</span> <span class="special">&&</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> <span class="special">...</span> <span class="identifier">args</span><span class="special">);</span> | |
| 296 | ||
| 297 | <span class="special">~</span><span class="identifier">captured_context</span><span class="special">();</span> | |
| 298 | ||
| 299 | <span class="identifier">captured_context</span><span class="special">(</span> <span class="identifier">captured_context</span> <span class="special">&&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 300 | <span class="identifier">captured_context</span> <span class="special">&</span> <span class="keyword">operator</span><span class="special">=(</span> <span class="identifier">captured_context</span> <span class="special">&&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 301 | ||
| 302 | <span class="identifier">captured_context</span><span class="special">(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">noexcept</span> <span class="special">=</span> <span class="keyword">delete</span><span class="special">;</span> | |
| 303 | <span class="identifier">captured_context</span> <span class="special">&</span> <span class="keyword">operator</span><span class="special">=(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">noexcept</span> <span class="special">=</span> <span class="keyword">delete</span><span class="special">;</span> | |
| 304 | ||
| 305 | <span class="keyword">explicit</span> <span class="keyword">operator</span> <span class="keyword">bool</span><span class="special">()</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 306 | <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!()</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 307 | ||
| 308 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span> <span class="identifier">captured_context</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">*</span> <span class="special">></span> <span class="keyword">operator</span><span class="special">()(</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">data</span> <span class="special">=</span> <span class="keyword">nullptr</span><span class="special">);</span> | |
| 309 | ||
| 310 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> | |
| 311 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span> <span class="identifier">captured_context</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">*</span> <span class="special">></span> <span class="keyword">operator</span><span class="special">()(</span> <span class="identifier">exec_ontop_arg_t</span><span class="special">,</span> <span class="identifier">Fn</span> <span class="special">&&</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> <span class="special">...</span> <span class="identifier">args</span><span class="special">);</span> | |
| 312 | ||
| 313 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> | |
| 314 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span> <span class="identifier">captured_context</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">*</span> <span class="special">></span> <span class="keyword">operator</span><span class="special">()(</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">data</span><span class="special">,</span> <span class="identifier">exec_ontop_arg_t</span><span class="special">,</span> <span class="identifier">Fn</span> <span class="special">&&</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> <span class="special">...</span> <span class="identifier">args</span><span class="special">);</span> | |
| 315 | ||
| 316 | <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 317 | ||
| 318 | <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!=(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 319 | ||
| 320 | <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 321 | ||
| 322 | <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 323 | ||
| 324 | <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><=(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 325 | ||
| 326 | <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>=(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 327 | ||
| 328 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traitsT</span> <span class="special">></span> | |
| 329 | <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traitsT</span> <span class="special">></span> <span class="special">&</span> | |
| 330 | <span class="keyword">operator</span><span class="special"><<(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traitsT</span> <span class="special">></span> <span class="special">&</span> <span class="identifier">os</span><span class="special">,</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">);</span> | |
| 331 | <span class="special">};</span> | |
| 332 | </pre> | |
| 333 | <h5> | |
| 334 | <a name="context.abstract_context.ccontext.h5"></a> | |
| 335 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__template__phrase__phrase_role__special___lt___phrase___phrase_role__identifier__typname__phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__keyword__typename__phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase___phrase_role__special___gt___phrase___phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__identifier__fn__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__identifier__args__phrase___phrase_role__special___amp__amp___phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase__phrase_role__special_____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__template__phrase__phrase_role__special___lt___phrase___phrase_role__identifier__typname__phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__keyword__typename__phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase___phrase_role__special___gt___phrase___phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__identifier__fn__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__identifier__args__phrase___phrase_role__special___amp__amp___phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase__phrase_role__special_____phrase___code_"><code class="computeroutput"><span class="keyword">template</span><span class="special"><</span> <span class="identifier">typname</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> <span class="identifier">captured_context</span><span class="special">(</span> <span class="identifier">Fn</span> <span class="special">&&</span> | |
| 336 | <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> | |
| 337 | <span class="special">...</span> <span class="identifier">args</span><span class="special">)</span></code></a> | |
| 338 | </h5> | |
| 339 | <div class="variablelist"> | |
| 340 | <p class="title"><b></b></p> | |
| 341 | <dl> | |
| 342 | <dt><span class="term">Effects:</span></dt> | |
| 343 | <dd><p> | |
| 344 | Creates a new execution context and prepares the context to execute | |
| 345 | <code class="computeroutput"><span class="identifier">fn</span></code>. <code class="computeroutput"><span class="identifier">fixedsize_stack</span></code> | |
| 346 | is used as default stack allocator (stack size == fixedsize_stack::traits::default_size(). | |
| 347 | </p></dd> | |
| 348 | </dl> | |
| 349 | </div> | |
| 350 | <h5> | |
| 351 | <a name="context.abstract_context.ccontext.h6"></a> | |
| 352 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__template__phrase__phrase_role__special___lt___phrase___phrase_role__keyword__typename__phrase___phrase_role__identifier__stackalloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__typname__phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__keyword__typename__phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase___phrase_role__special___gt___phrase___phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__identifier__std__phrase__phrase_role__special______phrase__phrase_role__identifier__allocator_arg_t__phrase__phrase_role__special_____phrase___phrase_role__identifier__stackalloc__phrase___phrase_role__identifier__salloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__fn__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__identifier__args__phrase___phrase_role__special___amp__amp___phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase__phrase_role__special_____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__template__phrase__phrase_role__special___lt___phrase___phrase_role__keyword__typename__phrase___phrase_role__identifier__stackalloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__typname__phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__keyword__typename__phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase___phrase_role__special___gt___phrase___phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__identifier__std__phrase__phrase_role__special______phrase__phrase_role__identifier__allocator_arg_t__phrase__phrase_role__special_____phrase___phrase_role__identifier__stackalloc__phrase___phrase_role__identifier__salloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__fn__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__identifier__args__phrase___phrase_role__special___amp__amp___phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase__phrase_role__special_____phrase___code_"><code class="computeroutput"><span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">StackAlloc</span><span class="special">,</span> <span class="identifier">typname</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> | |
| 353 | <span class="special">...</span> <span class="identifier">Args</span> | |
| 354 | <span class="special">></span> <span class="identifier">captured_context</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_arg_t</span><span class="special">,</span> | |
| 355 | <span class="identifier">StackAlloc</span> <span class="identifier">salloc</span><span class="special">,</span> <span class="identifier">Fn</span> <span class="special">&&</span> | |
| 356 | <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> | |
| 357 | <span class="special">...</span> <span class="identifier">args</span><span class="special">)</span></code></a> | |
| 358 | </h5> | |
| 359 | <div class="variablelist"> | |
| 360 | <p class="title"><b></b></p> | |
| 361 | <dl> | |
| 362 | <dt><span class="term">Effects:</span></dt> | |
| 363 | <dd><p> | |
| 364 | Creates a new execution context and prepares the context to execute | |
| 365 | <code class="computeroutput"><span class="identifier">fn</span></code>. | |
| 366 | </p></dd> | |
| 367 | </dl> | |
| 368 | </div> | |
| 369 | <h5> | |
| 370 | <a name="context.abstract_context.ccontext.h7"></a> | |
| 371 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__template__phrase__phrase_role__special___lt___phrase___phrase_role__keyword__typename__phrase___phrase_role__identifier__stackalloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__typname__phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__keyword__typename__phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase___phrase_role__special___gt___phrase___phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__identifier__std__phrase__phrase_role__special______phrase__phrase_role__identifier__allocator_arg_t__phrase__phrase_role__special_____phrase___phrase_role__identifier__preallocated__phrase___phrase_role__identifier__palloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__stackalloc__phrase___phrase_role__identifier__salloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__fn__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__identifier__args__phrase___phrase_role__special___amp__amp___phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase__phrase_role__special_____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__template__phrase__phrase_role__special___lt___phrase___phrase_role__keyword__typename__phrase___phrase_role__identifier__stackalloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__typname__phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__keyword__typename__phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase___phrase_role__special___gt___phrase___phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__identifier__std__phrase__phrase_role__special______phrase__phrase_role__identifier__allocator_arg_t__phrase__phrase_role__special_____phrase___phrase_role__identifier__preallocated__phrase___phrase_role__identifier__palloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__stackalloc__phrase___phrase_role__identifier__salloc__phrase__phrase_role__special_____phrase___phrase_role__identifier__fn__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__fn__phrase__phrase_role__special_____phrase___phrase_role__identifier__args__phrase___phrase_role__special___amp__amp___phrase___phrase_role__special_______phrase___phrase_role__identifier__args__phrase__phrase_role__special_____phrase___code_"><code class="computeroutput"><span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">StackAlloc</span><span class="special">,</span> <span class="identifier">typname</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> | |
| 372 | <span class="special">...</span> <span class="identifier">Args</span> | |
| 373 | <span class="special">></span> <span class="identifier">captured_context</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_arg_t</span><span class="special">,</span> | |
| 374 | <span class="identifier">preallocated</span> <span class="identifier">palloc</span><span class="special">,</span> <span class="identifier">StackAlloc</span> | |
| 375 | <span class="identifier">salloc</span><span class="special">,</span> | |
| 376 | <span class="identifier">Fn</span> <span class="special">&&</span> | |
| 377 | <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> | |
| 378 | <span class="special">...</span> <span class="identifier">args</span><span class="special">)</span></code></a> | |
| 379 | </h5> | |
| 380 | <div class="variablelist"> | |
| 381 | <p class="title"><b></b></p> | |
| 382 | <dl> | |
| 383 | <dt><span class="term">Effects:</span></dt> | |
| 384 | <dd><p> | |
| 385 | Creates a new execution context and prepares the context to execute | |
| 386 | <code class="computeroutput"><span class="identifier">fn</span></code>. Used to store control | |
| 387 | structures on top of the stack. | |
| 388 | </p></dd> | |
| 389 | </dl> | |
| 390 | </div> | |
| 391 | <h5> | |
| 392 | <a name="context.abstract_context.ccontext.h8"></a> | |
| 393 | <span><a name="context.abstract_context.ccontext._code__phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__identifier__captured_context__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__other__phrase__phrase_role__special_____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__identifier__captured_context__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__other__phrase__phrase_role__special_____phrase___code_"><code class="computeroutput"><span class="identifier">captured_context</span><span class="special">(</span> | |
| 394 | <span class="identifier">captured_context</span> <span class="special">&&</span> | |
| 395 | <span class="identifier">other</span><span class="special">)</span></code></a> | |
| 396 | </h5> | |
| 397 | <div class="variablelist"> | |
| 398 | <p class="title"><b></b></p> | |
| 399 | <dl> | |
| 400 | <dt><span class="term">Effects:</span></dt> | |
| 401 | <dd><p> | |
| 402 | Moves underlying capture record to <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>. | |
| 403 | </p></dd> | |
| 404 | <dt><span class="term">Throws:</span></dt> | |
| 405 | <dd><p> | |
| 406 | Nothing. | |
| 407 | </p></dd> | |
| 408 | </dl> | |
| 409 | </div> | |
| 410 | <h5> | |
| 411 | <a name="context.abstract_context.ccontext.h9"></a> | |
| 412 | <span><a name="context.abstract_context.ccontext._code__phrase_role__identifier__captured_context__phrase___phrase_role__special___amp___phrase___phrase_role__keyword__operator__phrase__phrase_role__special______phrase___phrase_role__identifier__captured_context__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__other__phrase__phrase_role__special_____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__identifier__captured_context__phrase___phrase_role__special___amp___phrase___phrase_role__keyword__operator__phrase__phrase_role__special______phrase___phrase_role__identifier__captured_context__phrase___phrase_role__special___amp__amp___phrase___phrase_role__identifier__other__phrase__phrase_role__special_____phrase___code_"><code class="computeroutput"><span class="identifier">captured_context</span> <span class="special">&</span> | |
| 413 | <span class="keyword">operator</span><span class="special">=(</span> | |
| 414 | <span class="identifier">captured_context</span> <span class="special">&&</span> | |
| 415 | <span class="identifier">other</span><span class="special">)</span></code></a> | |
| 416 | </h5> | |
| 417 | <div class="variablelist"> | |
| 418 | <p class="title"><b></b></p> | |
| 419 | <dl> | |
| 420 | <dt><span class="term">Effects:</span></dt> | |
| 421 | <dd><p> | |
| 422 | Moves the state of <code class="computeroutput"><span class="identifier">other</span></code> | |
| 423 | to <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> | |
| 424 | using move semantics. | |
| 425 | </p></dd> | |
| 426 | <dt><span class="term">Throws:</span></dt> | |
| 427 | <dd><p> | |
| 428 | Nothing. | |
| 429 | </p></dd> | |
| 430 | </dl> | |
| 431 | </div> | |
| 432 | <h5> | |
| 433 | <a name="context.abstract_context.ccontext.h10"></a> | |
| 434 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__explicit__phrase___phrase_role__keyword__operator__phrase___phrase_role__keyword__bool__phrase__phrase_role__special______phrase___phrase_role__keyword__const__phrase___phrase_role__keyword__noexcept__phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__explicit__phrase___phrase_role__keyword__operator__phrase___phrase_role__keyword__bool__phrase__phrase_role__special______phrase___phrase_role__keyword__const__phrase___phrase_role__keyword__noexcept__phrase___code_"><code class="computeroutput"><span class="keyword">explicit</span> <span class="keyword">operator</span> | |
| 435 | <span class="keyword">bool</span><span class="special">()</span> <span class="keyword">const</span> <span class="keyword">noexcept</span></code></a> | |
| 436 | </h5> | |
| 437 | <div class="variablelist"> | |
| 438 | <p class="title"><b></b></p> | |
| 439 | <dl> | |
| 440 | <dt><span class="term">Returns:</span></dt> | |
| 441 | <dd><p> | |
| 442 | <code class="computeroutput"><span class="keyword">true</span></code> if <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> | |
| 443 | points to a capture record. | |
| 444 | </p></dd> | |
| 445 | <dt><span class="term">Throws:</span></dt> | |
| 446 | <dd><p> | |
| 447 | Nothing. | |
| 448 | </p></dd> | |
| 449 | </dl> | |
| 450 | </div> | |
| 451 | <h5> | |
| 452 | <a name="context.abstract_context.ccontext.h11"></a> | |
| 453 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__bool__phrase___phrase_role__keyword__operator__phrase__phrase_role__special_______phrase___phrase_role__keyword__const__phrase___phrase_role__keyword__noexcept__phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__bool__phrase___phrase_role__keyword__operator__phrase__phrase_role__special_______phrase___phrase_role__keyword__const__phrase___phrase_role__keyword__noexcept__phrase___code_"><code class="computeroutput"><span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!()</span> <span class="keyword">const</span> <span class="keyword">noexcept</span></code></a> | |
| 454 | </h5> | |
| 455 | <div class="variablelist"> | |
| 456 | <p class="title"><b></b></p> | |
| 457 | <dl> | |
| 458 | <dt><span class="term">Returns:</span></dt> | |
| 459 | <dd><p> | |
| 460 | <code class="computeroutput"><span class="keyword">true</span></code> if <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> | |
| 461 | does not point to a capture record. | |
| 462 | </p></dd> | |
| 463 | <dt><span class="term">Throws:</span></dt> | |
| 464 | <dd><p> | |
| 465 | Nothing. | |
| 466 | </p></dd> | |
| 467 | </dl> | |
| 468 | </div> | |
| 469 | <h5> | |
| 470 | <a name="context.abstract_context.ccontext.h12"></a> | |
| 471 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__void__phrase___phrase_role__special_____phrase___phrase_role__keyword__operator__phrase__phrase_role__special_______phrase___phrase_role__keyword__void__phrase___phrase_role__special_____phrase___phrase_role__identifier__vp__phrase__phrase_role__special_____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__void__phrase___phrase_role__special_____phrase___phrase_role__keyword__operator__phrase__phrase_role__special_______phrase___phrase_role__keyword__void__phrase___phrase_role__special_____phrase___phrase_role__identifier__vp__phrase__phrase_role__special_____phrase___code_"><code class="computeroutput"><span class="keyword">void</span> <span class="special">*</span> <span class="keyword">operator</span><span class="special">()(</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">vp</span><span class="special">)</span></code></a> | |
| 472 | </h5> | |
| 473 | <pre class="programlisting"><span class="keyword">void</span> <span class="special">*</span> <span class="keyword">operator</span><span class="special">()(</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">vp</span> <span class="special">=</span> <span class="keyword">nullptr</span><span class="special">);</span> | |
| 474 | ||
| 475 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> | |
| 476 | <span class="keyword">void</span> <span class="special">*</span> <span class="keyword">operator</span><span class="special">()(</span> <span class="identifier">exec_ontop_arg_t</span><span class="special">,</span> <span class="identifier">Fn</span> <span class="special">&&</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> <span class="special">...</span> <span class="identifier">args</span><span class="special">);</span> | |
| 477 | ||
| 478 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> | |
| 479 | <span class="keyword">void</span> <span class="special">*</span> <span class="keyword">operator</span><span class="special">()(</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">vp</span><span class="special">,</span> <span class="identifier">exec_ontop_arg_t</span><span class="special">,</span> <span class="identifier">Fn</span> <span class="special">&&</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> <span class="special">...</span> <span class="identifier">args</span><span class="special">);</span> | |
| 480 | </pre> | |
| 481 | <div class="variablelist"> | |
| 482 | <p class="title"><b></b></p> | |
| 483 | <dl> | |
| 484 | <dt><span class="term">Effects:</span></dt> | |
| 485 | <dd> | |
| 486 | <p> | |
| 487 | Stores internally the current context data (stack pointer, instruction | |
| 488 | pointer, and CPU registers) to the current active context and restores | |
| 489 | the context data from <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>, which implies jumping to <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>'s | |
| 490 | execution context. The void pointer argument, <code class="computeroutput"><span class="identifier">vp</span></code>, | |
| 491 | is passed to the current context to be returned by the most recent | |
| 492 | call to <code class="computeroutput"><span class="identifier">captured_context</span><span class="special">::</span><span class="keyword">operator</span><span class="special">()</span></code> in the same thread. [[Note: | |
| 493 | </p> | |
| 494 | <p> | |
| 495 | The behaviour is undefined if <code class="computeroutput"><span class="keyword">operator</span><span class="special">()()</span></code> is called while <code class="computeroutput"><span class="identifier">captured_context</span><span class="special">::</span><span class="identifier">current</span><span class="special">()</span></code> returns <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> (e.g. resuming an already running | |
| 496 | context). If the top-level context function returns, <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">exit</span><span class="special">()</span></code> | |
| 497 | is called. | |
| 498 | </p> | |
| 499 | </dd> | |
| 500 | <dt><span class="term">Returns:</span></dt> | |
| 501 | <dd><p> | |
| 502 | The void pointer argument passed to the most recent call to <code class="computeroutput"><span class="identifier">captured_context</span><span class="special">::</span><span class="keyword">operator</span><span class="special">()</span></code>, | |
| 503 | if any. | |
| 504 | </p></dd> | |
| 505 | <dt><span class="term">Throws:</span></dt> | |
| 506 | <dd><p> | |
| 507 | Nothing. | |
| 508 | </p></dd> | |
| 509 | </dl> | |
| 510 | </div> | |
| 511 | <h5> | |
| 512 | <a name="context.abstract_context.ccontext.h13"></a> | |
| 513 | <span><a name="context.abstract_context.ccontext._code__phrase_role__identifier__std__phrase__phrase_role__special______phrase__phrase_role__identifier__tuple__phrase__phrase_role__special___lt___phrase___phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__keyword__void__phrase___phrase_role__special___gt___phrase___phrase_role__keyword__operator__phrase__phrase_role__special_______phrase___phrase_role__keyword__void__phrase___phrase_role__special_____phrase___phrase_role__identifier__vp__phrase__phrase_role__special_____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__identifier__std__phrase__phrase_role__special______phrase__phrase_role__identifier__tuple__phrase__phrase_role__special___lt___phrase___phrase_role__identifier__captured_context__phrase__phrase_role__special_____phrase___phrase_role__keyword__void__phrase___phrase_role__special___gt___phrase___phrase_role__keyword__operator__phrase__phrase_role__special_______phrase___phrase_role__keyword__void__phrase___phrase_role__special_____phrase___phrase_role__identifier__vp__phrase__phrase_role__special_____phrase___code_"><code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span> <span class="identifier">captured_context</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">></span> | |
| 514 | <span class="keyword">operator</span><span class="special">()(</span> | |
| 515 | <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">vp</span><span class="special">)</span></code></a> | |
| 516 | </h5> | |
| 517 | <pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span> <span class="identifier">captured_context</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">*</span> <span class="special">></span> <span class="keyword">operator</span><span class="special">()(</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">data</span> <span class="special">=</span> <span class="keyword">nullptr</span><span class="special">);</span> | |
| 518 | ||
| 519 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> | |
| 520 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span> <span class="identifier">captured_context</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">*</span> <span class="special">></span> <span class="keyword">operator</span><span class="special">()(</span> <span class="identifier">exec_ontop_arg_t</span><span class="special">,</span> <span class="identifier">Fn</span> <span class="special">&&</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> <span class="special">...</span> <span class="identifier">args</span><span class="special">);</span> | |
| 521 | ||
| 522 | <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">...</span> <span class="identifier">Args</span> <span class="special">></span> | |
| 523 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span> <span class="identifier">captured_context</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">*</span> <span class="special">></span> <span class="keyword">operator</span><span class="special">()(</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">data</span><span class="special">,</span> <span class="identifier">exec_ontop_arg_t</span><span class="special">,</span> <span class="identifier">Fn</span> <span class="special">&&</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&&</span> <span class="special">...</span> <span class="identifier">args</span><span class="special">);</span> | |
| 524 | </pre> | |
| 525 | <div class="variablelist"> | |
| 526 | <p class="title"><b></b></p> | |
| 527 | <dl> | |
| 528 | <dt><span class="term">Effects:</span></dt> | |
| 529 | <dd> | |
| 530 | <p> | |
| 531 | Stores internally the current context data (stack pointer, instruction | |
| 532 | pointer, and CPU registers) of the current active context and restores | |
| 533 | the context data from <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>, which implies jumping to <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>'s | |
| 534 | context. The void pointer argument, <code class="computeroutput"><span class="identifier">vp</span></code>, | |
| 535 | is passed to the current context to be returned by the most recent | |
| 536 | call to <code class="computeroutput"><span class="identifier">captured_context</span><span class="special">::</span><span class="keyword">operator</span><span class="special">()</span></code> in the same thread. <code class="computeroutput"><span class="identifier">fn</span></code> is executed with arguments <code class="computeroutput"><span class="identifier">args</span></code> on top of the stack of <code class="computeroutput"><span class="keyword">this</span></code>. [[Note: | |
| 537 | </p> | |
| 538 | <p> | |
| 539 | The behaviour is undefined if <code class="computeroutput"><span class="keyword">operator</span><span class="special">()()</span></code> is called while <code class="computeroutput"><span class="identifier">captured_context</span><span class="special">::</span><span class="identifier">current</span><span class="special">()</span></code> returns <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> (e.g. resuming an already running | |
| 540 | context). If the top-level context function returns, <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">exit</span><span class="special">()</span></code> | |
| 541 | is called. | |
| 542 | </p> | |
| 543 | </dd> | |
| 544 | <dt><span class="term">Returns:</span></dt> | |
| 545 | <dd><p> | |
| 546 | The tuple of void pointer argument passed to the most recent call to | |
| 547 | <code class="computeroutput"><span class="identifier">captured_context</span><span class="special">::</span><span class="keyword">operator</span><span class="special">()</span></code>, | |
| 548 | if any and a captured_context representing the context that has been | |
| 549 | suspended . | |
| 550 | </p></dd> | |
| 551 | </dl> | |
| 552 | </div> | |
| 553 | <h5> | |
| 554 | <a name="context.abstract_context.ccontext.h14"></a> | |
| 555 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special______phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special______phrase___code_"><code class="computeroutput"><span class="keyword">operator</span><span class="special">==</span></code></a> | |
| 556 | </h5> | |
| 557 | <pre class="programlisting"><span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 558 | </pre> | |
| 559 | <div class="variablelist"> | |
| 560 | <p class="title"><b></b></p> | |
| 561 | <dl> | |
| 562 | <dt><span class="term">Returns:</span></dt> | |
| 563 | <dd><p> | |
| 564 | <code class="computeroutput"><span class="keyword">true</span></code> if <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> | |
| 565 | and <code class="computeroutput"><span class="identifier">other</span></code> represent | |
| 566 | the same execution context, <code class="computeroutput"><span class="keyword">false</span></code> | |
| 567 | otherwise. | |
| 568 | </p></dd> | |
| 569 | <dt><span class="term">Throws:</span></dt> | |
| 570 | <dd><p> | |
| 571 | Nothing. | |
| 572 | </p></dd> | |
| 573 | </dl> | |
| 574 | </div> | |
| 575 | <h5> | |
| 576 | <a name="context.abstract_context.ccontext.h15"></a> | |
| 577 | <span><a name="context.abstract_context.ccontext.code_phrase_role_keyword_operat0"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext.code_phrase_role_keyword_operat0"><code class="computeroutput"><span class="keyword">operator</span><span class="special">!=</span></code></a> | |
| 578 | </h5> | |
| 579 | <pre class="programlisting"><span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!=(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 580 | </pre> | |
| 581 | <div class="variablelist"> | |
| 582 | <p class="title"><b></b></p> | |
| 583 | <dl> | |
| 584 | <dt><span class="term">Returns:</span></dt> | |
| 585 | <dd><p> | |
| 586 | [`! (other == * this) | |
| 587 | </p></dd> | |
| 588 | </dl> | |
| 589 | </div> | |
| 590 | <p> | |
| 591 | [[Throws:] [Nothing.]] ] | |
| 592 | </p> | |
| 593 | <h5> | |
| 594 | <a name="context.abstract_context.ccontext.h16"></a> | |
| 595 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___lt___phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___lt___phrase___code_"><code class="computeroutput"><span class="keyword">operator</span><span class="special"><</span></code></a> | |
| 596 | </h5> | |
| 597 | <pre class="programlisting"><span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 598 | </pre> | |
| 599 | <div class="variablelist"> | |
| 600 | <p class="title"><b></b></p> | |
| 601 | <dl> | |
| 602 | <dt><span class="term">Returns:</span></dt> | |
| 603 | <dd><p> | |
| 604 | <code class="computeroutput"><span class="keyword">true</span></code> if <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span> <span class="special">!=</span> <span class="identifier">other</span></code> | |
| 605 | is true and the implementation-defined total order of <code class="computeroutput"><span class="identifier">captured_context</span></code> values places <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> | |
| 606 | before <code class="computeroutput"><span class="identifier">other</span></code>, false | |
| 607 | otherwise. | |
| 608 | </p></dd> | |
| 609 | <dt><span class="term">Throws:</span></dt> | |
| 610 | <dd><p> | |
| 611 | Nothing. | |
| 612 | </p></dd> | |
| 613 | </dl> | |
| 614 | </div> | |
| 615 | <h5> | |
| 616 | <a name="context.abstract_context.ccontext.h17"></a> | |
| 617 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___gt___phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___gt___phrase___code_"><code class="computeroutput"><span class="keyword">operator</span><span class="special">></span></code></a> | |
| 618 | </h5> | |
| 619 | <pre class="programlisting"><span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 620 | </pre> | |
| 621 | <div class="variablelist"> | |
| 622 | <p class="title"><b></b></p> | |
| 623 | <dl> | |
| 624 | <dt><span class="term">Returns:</span></dt> | |
| 625 | <dd><p> | |
| 626 | <code class="computeroutput"><span class="identifier">other</span> <span class="special"><</span> | |
| 627 | <span class="special">*</span> <span class="keyword">this</span></code> | |
| 628 | </p></dd> | |
| 629 | <dt><span class="term">Throws:</span></dt> | |
| 630 | <dd><p> | |
| 631 | Nothing. | |
| 632 | </p></dd> | |
| 633 | </dl> | |
| 634 | </div> | |
| 635 | <h5> | |
| 636 | <a name="context.abstract_context.ccontext.h18"></a> | |
| 637 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___lt____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___lt____phrase___code_"><code class="computeroutput"><span class="keyword">operator</span><span class="special"><=</span></code></a> | |
| 638 | </h5> | |
| 639 | <pre class="programlisting"><span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><=(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 640 | </pre> | |
| 641 | <div class="variablelist"> | |
| 642 | <p class="title"><b></b></p> | |
| 643 | <dl> | |
| 644 | <dt><span class="term">Returns:</span></dt> | |
| 645 | <dd><p> | |
| 646 | <code class="computeroutput"><span class="special">!</span> <span class="special">(</span><span class="identifier">other</span> <span class="special"><</span> | |
| 647 | <span class="special">*</span> <span class="keyword">this</span><span class="special">)</span></code> | |
| 648 | </p></dd> | |
| 649 | <dt><span class="term">Throws:</span></dt> | |
| 650 | <dd><p> | |
| 651 | Nothing. | |
| 652 | </p></dd> | |
| 653 | </dl> | |
| 654 | </div> | |
| 655 | <h5> | |
| 656 | <a name="context.abstract_context.ccontext.h19"></a> | |
| 657 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___gt____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___gt____phrase___code_"><code class="computeroutput"><span class="keyword">operator</span><span class="special">>=</span></code></a> | |
| 658 | </h5> | |
| 659 | <pre class="programlisting"><span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>=(</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 660 | </pre> | |
| 661 | <div class="variablelist"> | |
| 662 | <p class="title"><b></b></p> | |
| 663 | <dl> | |
| 664 | <dt><span class="term">Returns:</span></dt> | |
| 665 | <dd><p> | |
| 666 | <code class="computeroutput"><span class="special">!</span> <span class="special">(*</span> | |
| 667 | <span class="keyword">this</span> <span class="special"><</span> | |
| 668 | <span class="identifier">other</span><span class="special">)</span></code> | |
| 669 | </p></dd> | |
| 670 | <dt><span class="term">Throws:</span></dt> | |
| 671 | <dd><p> | |
| 672 | Nothing. | |
| 673 | </p></dd> | |
| 674 | </dl> | |
| 675 | </div> | |
| 676 | <h5> | |
| 677 | <a name="context.abstract_context.ccontext.h20"></a> | |
| 678 | <span><a name="context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___lt__lt___phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__keyword__operator__phrase__phrase_role__special___lt__lt___phrase___code_"><code class="computeroutput"><span class="keyword">operator</span><span class="special"><<</span></code></a> | |
| 679 | </h5> | |
| 680 | <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">charT</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traitsT</span> <span class="special">></span> | |
| 681 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traitsT</span> <span class="special">></span> <span class="special">&</span> | |
| 682 | <span class="keyword">operator</span><span class="special"><<(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traitsT</span> <span class="special">></span> <span class="special">&</span> <span class="identifier">os</span><span class="special">,</span> <span class="identifier">captured_context</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">);</span> | |
| 683 | </pre> | |
| 684 | <div class="variablelist"> | |
| 685 | <p class="title"><b></b></p> | |
| 686 | <dl> | |
| 687 | <dt><span class="term">Efects:</span></dt> | |
| 688 | <dd><p> | |
| 689 | Writes the representation of <code class="computeroutput"><span class="identifier">other</span></code> | |
| 690 | to stream <code class="computeroutput"><span class="identifier">os</span></code>. | |
| 691 | </p></dd> | |
| 692 | <dt><span class="term">Returns:</span></dt> | |
| 693 | <dd><p> | |
| 694 | <code class="computeroutput"><span class="identifier">os</span></code> | |
| 695 | </p></dd> | |
| 696 | </dl> | |
| 697 | </div> | |
| 698 | <h5> | |
| 699 | <a name="context.abstract_context.ccontext.h21"></a> | |
| 700 | <span><a name="context.abstract_context.ccontext.struct__code__phrase_role__identifier__preallocated__phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext.struct__code__phrase_role__identifier__preallocated__phrase___code_">Struct | |
| 701 | <code class="computeroutput"><span class="identifier">preallocated</span></code></a> | |
| 702 | </h5> | |
| 703 | <pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">preallocated</span> <span class="special">{</span> | |
| 704 | <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">sp</span><span class="special">;</span> | |
| 705 | <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">;</span> | |
| 706 | <span class="identifier">stack_context</span> <span class="identifier">sctx</span><span class="special">;</span> | |
| 707 | ||
| 708 | <span class="identifier">preallocated</span><span class="special">(</span> <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">sp</span><span class="special">,</span> <span class="identifier">std</span><span class="special">:</span><span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span> <span class="identifier">stack_allocator</span> <span class="identifier">sctx</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span> | |
| 709 | <span class="special">};</span> | |
| 710 | </pre> | |
| 711 | <h5> | |
| 712 | <a name="context.abstract_context.ccontext.h22"></a> | |
| 713 | <span><a name="context.abstract_context.ccontext._code__phrase_role__identifier__preallocated__phrase__phrase_role__special_____phrase___phrase_role__keyword__void__phrase___phrase_role__special_____phrase___phrase_role__identifier__sp__phrase__phrase_role__special_____phrase___phrase_role__identifier__std__phrase__phrase_role__special_____phrase__phrase_role__identifier__size_t__phrase___phrase_role__identifier__size__phrase__phrase_role__special_____phrase___phrase_role__identifier__stack_allocator__phrase___phrase_role__identifier__sctx__phrase__phrase_role__special_____phrase___code_"></a></span><a class="link" href="ccontext.html#context.abstract_context.ccontext._code__phrase_role__identifier__preallocated__phrase__phrase_role__special_____phrase___phrase_role__keyword__void__phrase___phrase_role__special_____phrase___phrase_role__identifier__sp__phrase__phrase_role__special_____phrase___phrase_role__identifier__std__phrase__phrase_role__special_____phrase__phrase_role__identifier__size_t__phrase___phrase_role__identifier__size__phrase__phrase_role__special_____phrase___phrase_role__identifier__stack_allocator__phrase___phrase_role__identifier__sctx__phrase__phrase_role__special_____phrase___code_"><code class="computeroutput"><span class="identifier">preallocated</span><span class="special">(</span> | |
| 714 | <span class="keyword">void</span> <span class="special">*</span> <span class="identifier">sp</span><span class="special">,</span> <span class="identifier">std</span><span class="special">:</span><span class="identifier">size_t</span> <span class="identifier">size</span><span class="special">,</span> <span class="identifier">stack_allocator</span> <span class="identifier">sctx</span><span class="special">)</span></code></a> | |
| 715 | </h5> | |
| 716 | <div class="variablelist"> | |
| 717 | <p class="title"><b></b></p> | |
| 718 | <dl> | |
| 719 | <dt><span class="term">Effects:</span></dt> | |
| 720 | <dd><p> | |
| 721 | Creates an object of preallocated. | |
| 722 | </p></dd> | |
| 723 | </dl> | |
| 724 | </div> | |
| 725 | </div> | |
| 726 | <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> | |
| 727 | <td align="left"></td> | |
| 728 | <td align="right"><div class="copyright-footer">Copyright © 2014 Oliver Kowalke<p> | |
| 729 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 730 | 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>) | |
| 731 | </p> | |
| 732 | </div></td> | |
| 733 | </tr></table> | |
| 734 | <hr> | |
| 735 | <div class="spirit-nav"> | |
| 736 | <a accesskey="p" href="econtext.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../abstract_context.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="stack.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> | |
| 737 | </div> | |
| 738 | </body> | |
| 739 | </html> |