
<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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