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| <div class="section" id="checkstructhasmember"> |
| <span id="module:CheckStructHasMember"></span><h1>CheckStructHasMember<a class="headerlink" href="#checkstructhasmember" title="Permalink to this headline">¶</a></h1> |
| <p>Check if the given struct or class has the specified member variable</p> |
| <dl class="cmake command"> |
| <dt class="sig sig-object cmake" id="command:check_struct_has_member"> |
| <span class="sig-name descname"><span class="pre">CHECK_STRUCT_HAS_MEMBER</span></span><a class="headerlink" href="#command:check_struct_has_member" title="Permalink to this definition">¶</a></dt> |
| <dd><div class="highlight-cmake notranslate"><div class="highlight"><pre><span></span><span class="nf">CHECK_STRUCT_HAS_MEMBER(</span><span class="nv"><struct></span><span class="w"> </span><span class="nv"><member></span><span class="w"> </span><span class="nv"><header></span><span class="w"> </span><span class="nv"><variable></span><span class="w"></span> |
| <span class="w"> </span><span class="p">[</span><span class="no">LANGUAGE</span><span class="w"> </span><span class="nv"><language></span><span class="p">]</span><span class="nf">)</span><span class="w"></span> |
| </pre></div> |
| </div> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span><struct> - the name of the struct or class you are interested in |
| <member> - the member which existence you want to check |
| <header> - the header(s) where the prototype should be declared |
| <variable> - variable to store the result |
| <language> - the compiler to use (C or CXX) |
| </pre></div> |
| </div> |
| </dd></dl> |
| |
| <p>The following variables may be set before calling this macro to modify |
| the way the check is run:</p> |
| <dl> |
| <dt><code class="docutils literal notranslate"><span class="pre">CMAKE_REQUIRED_FLAGS</span></code></dt><dd><p>string of compile command line flags.</p> |
| </dd> |
| <dt><code class="docutils literal notranslate"><span class="pre">CMAKE_REQUIRED_DEFINITIONS</span></code></dt><dd><p>list of macros to define (-DFOO=bar).</p> |
| </dd> |
| <dt><code class="docutils literal notranslate"><span class="pre">CMAKE_REQUIRED_INCLUDES</span></code></dt><dd><p>list of include directories.</p> |
| </dd> |
| <dt><code class="docutils literal notranslate"><span class="pre">CMAKE_REQUIRED_LINK_OPTIONS</span></code></dt><dd><div class="versionadded"> |
| <p><span class="versionmodified added">New in version 3.14: </span>list of options to pass to link command.</p> |
| </div> |
| </dd> |
| <dt><code class="docutils literal notranslate"><span class="pre">CMAKE_REQUIRED_LIBRARIES</span></code></dt><dd><p>list of libraries to link.</p> |
| </dd> |
| <dt><code class="docutils literal notranslate"><span class="pre">CMAKE_REQUIRED_QUIET</span></code></dt><dd><div class="versionadded"> |
| <p><span class="versionmodified added">New in version 3.1: </span>execute quietly without messages.</p> |
| </div> |
| </dd> |
| </dl> |
| <p>Example:</p> |
| <div class="highlight-cmake notranslate"><div class="highlight"><pre><span></span><span class="nf">CHECK_STRUCT_HAS_MEMBER(</span><span class="s">"struct timeval"</span><span class="w"> </span><span class="nb">tv_sec</span><span class="w"> </span><span class="na">sys/select.h</span><span class="w"></span> |
| <span class="w"> </span><span class="no">HAVE_TIMEVAL_TV_SEC</span><span class="w"> </span><span class="no">LANGUAGE</span><span class="w"> </span><span class="no">C</span><span class="nf">)</span><span class="w"></span> |
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