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12 <h3>warn_ptr_int_conv</h3> |
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13 <p>Controls the recognition of the conversion of pointer values to incorrectly-sized integral values.</p> |
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14 <h5>Syntax</h5> |
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15 <p class="code">#pragma warn_ptr_int_conv on | off | reset</p> |
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16 <h5>Targets</h5> |
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17 All platforms.<br /> |
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18 <h5>Remarks</h5> |
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19 <p>If you enable this pragma, the compiler issues a warning if an expression attempts to convert a pointer value to an integral type that is not large enough to hold the pointer value. </p> |
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20 <div class="listing"> |
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21 <h4> Listing 10.44 Example for #pragma warn_ptr_int_conv</h4> |
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22 <p>#pragma warn_ptr_int_conv on </p> |
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23 <p>char *my_ptr;<br /> |
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24 char too_small = (char)my_ptr; // WARNING: char is too small</p> |
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25 </div> |
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26 <p>See also pragma <a href="p_warn_any_ptr_int_conv.htm">warn_any_ptr_int_conv</a>.</p> |
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27 <p>For more information about this warning, see “Common Errors”.</p> |
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28 <p>This pragma corresponds to the Pointer / Integral Conversions setting . To check this setting, use <span class="code">__option (warn_ptr_int_conv)</span><span class="code"></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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29 <p></p> |
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30 <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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