| author | Deepak Modgil <Deepak.Modgil@Nokia.com> |
| Fri, 03 Apr 2009 23:33:03 +0100 | |
| changeset 0 | fb279309251b |
| child 1641 | 2b3996fc09a1 |
| permissions | -rw-r--r-- |
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fb279309251b
DP tools release version Revision: 200912
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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>warn_any_ptr_int_conv</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>warn_any_ptr_int_conv</h3> |
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<p> Controls if the compiler generates a warning when an integral type is explicitly converted to a pointer type or vice versa.</p> |
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<h5>Syntax</h5> |
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<p class="code">#pragma warn_any_ptr_int_conv on | off | reset |
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</p> |
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<h5>Targets</h5> |
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All targets.<br /> |
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<h5>Remarks</h5> |
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<p>This pragma is useful to identify potential 64-bit pointer portability issues. An example is shown in Listing 10.34.</p> |
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<div class="listing"> |
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<h4> Listing 10.34 Example of warn_any_ptr_int_conv</h4> |
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<p>#pragma warn_ptr_int_conv on</p> |
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<p>short i, *ip</p> |
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<p>void foo() {<br />
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i = (short)ip; // WARNING: integral type is not <br /> |
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// large enough to hold pointer<br /> |
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}</p> |
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<p>#pragma warn_any_ptr_int_conv on</p> |
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<p>void bar() {<br />
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i = (int)ip; // WARNING: pointer to integral conversion<br /> |
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ip = (short *)i; // WARNING: integral to pointer conversion<br /> |
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}</p> |
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</div> |
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<h5>Remarks</h5> |
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<p>See also pragma <a href="p_warn_ptr_int_conv.htm">warn_ptr_int_conv</a>.</p> |
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<p> This pragma corresponds to the Pointer/Integral Conversions setting . To check this setting, use <span class="code">__option (warn_any_ptr_int_conv)</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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<div id="footer">Copyright © 2009 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> |