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<a name="boost.log.once_block_flag"></a><div class="titlepage"></div>
<span class="keyword">struct</span> <a class="link" href="once_block_flag.html" title="Struct once_block_flag">once_block_flag</a> <span class="special">{</span>
<span class="special">}</span><span class="special">;</span></pre></div>
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-<a name="idp124987088"></a><h2>Description</h2>
+<a name="idp135606592"></a><h2>Description</h2>
<p>This structure should be used in conjunction with the <code class="computeroutput">BOOST_LOG_ONCE_BLOCK_FLAG</code> macro. Usage example:</p>
<p><code class="computeroutput"> <a class="link" href="once_block_flag.html" title="Struct once_block_flag">once_block_flag</a> flag = BOOST_LOG_ONCE_BLOCK_INIT;</code></p>
<p><code class="computeroutput">void foo() { BOOST_LOG_ONCE_BLOCK_FLAG(flag) { puts("Hello, world once!"); } } </code> </p>
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