author | fturovic <frank.turovich@nokia.com> |
Mon, 19 Jul 2010 16:13:24 -0500 | |
changeset 1641 | 2b3996fc09a1 |
parent 0 | fb279309251b |
permissions | -rw-r--r-- |
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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>errno_name</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>errno_name</h3> |
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<p> Tells the optimizer how to find the <span class="code">errno</span> identifier. </p> |
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<h5>Syntax</h5> |
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<p class="code">#pragma errno_name id | ... |
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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>When this pragma is used, the optimizer can use the identifier <span class="code">errno</span> (either a macro or a function call) to optimize standard C library functions better. If not used, the optimizer makes worst-case assumptions about the effects of calls to the standard C library.</p> |
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<p class="note"><strong>NOTE</strong> The MSL C library already includes a use of this pragma, so you would only need to use it for third-party C libraries.</p> |
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<p class="code">If errno resolves to a variable name, specify it like this:</p> |
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<p class="listing"> #pragma errno_name _Errno</p> |
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<p>If errno is a function call accessing ordinarily inaccessible globals, use this form:</p> |
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<p class="listing"> #pragma errno_name ...</p> |
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<p> Otherwise, do not use this pragma as it can result in incorrect optimizations in your code.</p> |
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<p> This pragma does not correspond to any panel setting. By default, this pragma is unspecified (worst case assumption). </p> |
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<p></p> |
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<div id="footer">Copyright © 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> |