core/com.nokia.carbide.cpp.compiler.doc.user/html/pragmas/p_warn_ptr_int_conv.htm
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<h3>warn_ptr_int_conv</h3>
<p>Controls the recognition of the conversion of pointer values to incorrectly-sized integral values.</p>
<h5>Syntax</h5>
<p class="code">#pragma warn_ptr_int_conv on | off | reset</p>
<h5>Targets</h5>
All platforms.<br />
<h5>Remarks</h5>
<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>
<div class="listing">
<h4> Listing 10.44 Example for #pragma warn_ptr_int_conv</h4>
<p>#pragma warn_ptr_int_conv on </p>
<p>char *my_ptr;<br />
char too_small = (char)my_ptr; // WARNING: char is too small</p>
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<p>See also pragma <a href="p_warn_any_ptr_int_conv.htm">warn_any_ptr_int_conv</a>.</p>
<p>For more information about this warning, see “Common Errors”.</p>
<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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