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<p>
Constructs a <a class="el" href="classlog4cxx_1_1_pattern_layout.html">PatternLayout</a> using the supplied conversion pattern. 
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="f1f3ced78d335ec9c2b800d6d5aa3ef8"></a><!-- doxytag: member="log4cxx::PatternLayout::activateOptions" ref="f