1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>execution::relationship_t</title> 5<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../boost_asio.html" title="Boost.Asio"> 8<link rel="up" href="../reference.html" title="Reference"> 9<link rel="prev" href="execution__relationship.html" title="execution::relationship"> 10<link rel="next" href="execution__relationship_t/continuation.html" title="execution::relationship_t::continuation"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td> 15<td align="center"><a href="../../../../index.html">Home</a></td> 16<td align="center"><a 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href="execution__relationship_t.html" title="execution::relationship_t">execution::relationship_t</a> 28</h3></div></div></div> 29<p> 30 A property to describe whether submitted tasks represent continuations of 31 the calling context. 32 </p> 33<pre class="programlisting">struct relationship_t 34</pre> 35<h5> 36<a name="boost_asio.reference.execution__relationship_t.h0"></a> 37 <span class="phrase"><a name="boost_asio.reference.execution__relationship_t.types"></a></span><a class="link" href="execution__relationship_t.html#boost_asio.reference.execution__relationship_t.types">Types</a> 38 </h5> 39<div class="informaltable"><table class="table"> 40<colgroup> 41<col> 42<col> 43</colgroup> 44<thead><tr> 45<th> 46 <p> 47 Name 48 </p> 49 </th> 50<th> 51 <p> 52 Description 53 </p> 54 </th> 55</tr></thead> 56<tbody> 57<tr> 58<td> 59 <p> 60 <a class="link" href="execution__relationship_t__continuation_t.html" title="execution::relationship_t::continuation_t"><span class="bold"><strong>continuation_t</strong></span></a> 61 </p> 62 </td> 63<td> 64 <p> 65 A sub-property that indicates that the executor represents a continuation 66 of the calling context. 67 </p> 68 </td> 69</tr> 70<tr> 71<td> 72 <p> 73 <a class="link" href="execution__relationship_t__fork_t.html" title="execution::relationship_t::fork_t"><span class="bold"><strong>fork_t</strong></span></a> 74 </p> 75 </td> 76<td> 77 <p> 78 A sub-property that indicates that the executor does not represent 79 a continuation of the calling context. 80 </p> 81 </td> 82</tr> 83<tr> 84<td> 85 <p> 86 <a class="link" href="execution__relationship_t/polymorphic_query_result_type.html" title="execution::relationship_t::polymorphic_query_result_type"><span class="bold"><strong>polymorphic_query_result_type</strong></span></a> 87 </p> 88 </td> 89<td> 90 <p> 91 The type returned by queries against an any_executor. 92 </p> 93 </td> 94</tr> 95</tbody> 96</table></div> 97<h5> 98<a name="boost_asio.reference.execution__relationship_t.h1"></a> 99 <span class="phrase"><a name="boost_asio.reference.execution__relationship_t.member_functions"></a></span><a class="link" href="execution__relationship_t.html#boost_asio.reference.execution__relationship_t.member_functions">Member 100 Functions</a> 101 </h5> 102<div class="informaltable"><table class="table"> 103<colgroup> 104<col> 105<col> 106</colgroup> 107<thead><tr> 108<th> 109 <p> 110 Name 111 </p> 112 </th> 113<th> 114 <p> 115 Description 116 </p> 117 </th> 118</tr></thead> 119<tbody><tr> 120<td> 121 <p> 122 <a class="link" href="execution__relationship_t/relationship_t.html" title="execution::relationship_t::relationship_t"><span class="bold"><strong>relationship_t</strong></span></a> <span class="silver">[constructor]</span> 123 </p> 124 </td> 125<td> 126 <p> 127 Default constructor. <br> <span class="silver"> —</span><br> Construct from a sub-property 128 value. 129 </p> 130 </td> 131</tr></tbody> 132</table></div> 133<h5> 134<a name="boost_asio.reference.execution__relationship_t.h2"></a> 135 <span class="phrase"><a name="boost_asio.reference.execution__relationship_t.data_members"></a></span><a class="link" href="execution__relationship_t.html#boost_asio.reference.execution__relationship_t.data_members">Data 136 Members</a> 137 </h5> 138<div class="informaltable"><table class="table"> 139<colgroup> 140<col> 141<col> 142</colgroup> 143<thead><tr> 144<th> 145 <p> 146 Name 147 </p> 148 </th> 149<th> 150 <p> 151 Description 152 </p> 153 </th> 154</tr></thead> 155<tbody> 156<tr> 157<td> 158 <p> 159 <a class="link" href="execution__relationship_t/continuation.html" title="execution::relationship_t::continuation"><span class="bold"><strong>continuation</strong></span></a> <span class="silver">[static]</span> 160 </p> 161 </td> 162<td> 163 <p> 164 A special value used for accessing the relationship_t::continuation_t 165 property. 166 </p> 167 </td> 168</tr> 169<tr> 170<td> 171 <p> 172 <a class="link" href="execution__relationship_t/fork.html" title="execution::relationship_t::fork"><span class="bold"><strong>fork</strong></span></a> <span class="silver">[static]</span> 173 </p> 174 </td> 175<td> 176 <p> 177 A special value used for accessing the relationship_t::fork_t property. 178 </p> 179 </td> 180</tr> 181<tr> 182<td> 183 <p> 184 <a class="link" href="execution__relationship_t/is_applicable_property_v.html" title="execution::relationship_t::is_applicable_property_v"><span class="bold"><strong>is_applicable_property_v</strong></span></a> <span class="silver">[static]</span> 185 </p> 186 </td> 187<td> 188 <p> 189 The relationship_t property applies to executors, senders, and 190 schedulers. 191 </p> 192 </td> 193</tr> 194<tr> 195<td> 196 <p> 197 <a class="link" href="execution__relationship_t/is_preferable.html" title="execution::relationship_t::is_preferable"><span class="bold"><strong>is_preferable</strong></span></a> <span class="silver">[static]</span> 198 </p> 199 </td> 200<td> 201 <p> 202 The top-level relationship_t property cannot be preferred. 203 </p> 204 </td> 205</tr> 206<tr> 207<td> 208 <p> 209 <a class="link" href="execution__relationship_t/is_requirable.html" title="execution::relationship_t::is_requirable"><span class="bold"><strong>is_requirable</strong></span></a> <span class="silver">[static]</span> 210 </p> 211 </td> 212<td> 213 <p> 214 The top-level relationship_t property cannot be required. 215 </p> 216 </td> 217</tr> 218</tbody> 219</table></div> 220<h5> 221<a name="boost_asio.reference.execution__relationship_t.h3"></a> 222 <span class="phrase"><a name="boost_asio.reference.execution__relationship_t.friends"></a></span><a class="link" href="execution__relationship_t.html#boost_asio.reference.execution__relationship_t.friends">Friends</a> 223 </h5> 224<div class="informaltable"><table class="table"> 225<colgroup> 226<col> 227<col> 228</colgroup> 229<thead><tr> 230<th> 231 <p> 232 Name 233 </p> 234 </th> 235<th> 236 <p> 237 Description 238 </p> 239 </th> 240</tr></thead> 241<tbody> 242<tr> 243<td> 244 <p> 245 <a class="link" href="execution__relationship_t/operator_not__eq_.html" title="execution::relationship_t::operator!="><span class="bold"><strong>operator!=</strong></span></a> 246 </p> 247 </td> 248<td> 249 <p> 250 Compare property values for inequality. 251 </p> 252 </td> 253</tr> 254<tr> 255<td> 256 <p> 257 <a class="link" href="execution__relationship_t/operator_eq__eq_.html" title="execution::relationship_t::operator=="><span class="bold"><strong>operator==</strong></span></a> 258 </p> 259 </td> 260<td> 261 <p> 262 Compare property values for equality. 263 </p> 264 </td> 265</tr> 266</tbody> 267</table></div> 268<h5> 269<a name="boost_asio.reference.execution__relationship_t.h4"></a> 270 <span class="phrase"><a name="boost_asio.reference.execution__relationship_t.requirements"></a></span><a class="link" href="execution__relationship_t.html#boost_asio.reference.execution__relationship_t.requirements">Requirements</a> 271 </h5> 272<p> 273 <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/execution/relationship.hpp</code> 274 </p> 275<p> 276 <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio/execution.hpp</code> 277 </p> 278</div> 279<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 280<td align="left"></td> 281<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 282 Kohlhoff<p> 283 Distributed under the Boost Software License, Version 1.0. (See accompanying 284 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>) 285 </p> 286</div></td> 287</tr></table> 288<hr> 289<div class="spirit-nav"> 290<a accesskey="p" href="execution__relationship.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../boost_asio.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="execution__relationship_t/continuation.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 291</div> 292</body> 293</html> 294
