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  20. <title>Visibility Pragmas (Using the GNU Compiler Collection (GCC))</title>
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  67. <a name="Visibility-Pragmas-1"></a>
  68. <h4 class="subsection">6.62.14 Visibility Pragmas</h4>
  69. <dl compact="compact">
  70. <dt><code>#pragma GCC visibility push(<var>visibility</var>)</code></dt>
  71. <dt><code>#pragma GCC visibility pop</code></dt>
  72. <dd><a name="index-pragma_002c-visibility"></a>
  73. <p>This pragma allows the user to set the visibility for multiple
  74. declarations without having to give each a visibility attribute
  75. (see <a href="Function-Attributes.html#Function-Attributes">Function Attributes</a>).
  76. </p>
  77. <p>In C++, &lsquo;<samp>#pragma GCC visibility</samp>&rsquo; affects only namespace-scope
  78. declarations. Class members and template specializations are not
  79. affected; if you want to override the visibility for a particular
  80. member or instantiation, you must use an attribute.
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