core/com.nokia.carbide.cpp.compiler.doc.user/html/pragmas/p_check_header_flags.htm
author stechong
Wed, 20 Oct 2010 11:19:31 -0500
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Keeping PlatSim internal only.
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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  <head>
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    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
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    <meta http-equiv="Content-Style-Type" content="text/css" />
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    <meta name="LASTUPDATED" content="06/17/05 11:09:43" />
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    <title>check_header_flags</title>
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	<link rel="StyleSheet" href="../../book.css" type="text/css"/>
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  </head>
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<body>
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<h3>check_header_flags</h3>
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<p>  Controls whether or not to ensure that a precompiled header&rsquo;s data matches a project&rsquo;s target settings.</p>
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<h5>Syntax</h5>
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  <p class="code">#pragma check_header_flags on | off | reset
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  </p>
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  <h5>Targets</h5>
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  All platforms.<br />
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  <h5>Remarks</h5>
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  <p>This pragma affects precompiled headers only.</p>
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  <p>If you enable this pragma, the compiler ensures that the precompiled header&rsquo;s preferences for double size (8-byte or 12-byte), int size (2-byte or 4-byte) and floating point math correspond to the build target&rsquo;s settings. If they do not match, the compiler generates an error.</p>
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  <p>If your precompiled header file depends on these settings, enable this pragma. Otherwise, disable it. </p>
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  <p>This pragma does not correspond to any panel setting. To check this setting, use <span class="code">__option (check_header_flags)</span>, described in <a href="../symbols/sym_settings.htm">Checking Settings</a>. The default setting is <span class="code">off</span>. </p>
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  <p></p>
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<div id="footer">Copyright &copy; 2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. <br>License: <a href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a></div>
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</body>
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</html>