core/com.nokia.carbide.cpp.compiler.doc.user/html/pragmas/p_warn_impl_i2f_conv.htm
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<h3>warn_impl_i2f_conv</h3>
<p>Controls the issuing of warnings for implicit int-to-float conversions.</p>
<h5>Syntax</h5>
<p class="code">#pragma warn_impl_i2f_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 for implicitly converting integral values to floating-point values. Listing 10.38 provides an example.</p>
<div class="listing">
<h4>Listing 10.38 Example of Implicit int-to-float Conversion</h4>
<p>#pragma warn_implicitconv on // required to enable warnings<br />
#pragma warn_impl_i2f_conv on // enable conversion warning </p>
<p>float f1, f2;<br />
signed int si1, si2;</p>
<p>int main()<br />
{<br />
f1 = si1; // WARNING</p>
<p>#pragma warn_impl_i2f_conv off // disable conversion warning<br />
f2 = si2; // OK<br />
}</p>
</div>
<p>This pragma corresponds to the Integer to Float setting . To check this setting, use <span class="code"><span class="code">__option (warn_impl_i</span>2f_conv)</span>, described in <a href="../symbols/sym_settings.htm">Checking Settings</a>. The default setting is <span class="code">off</span>.</p>
<p class="note"><strong>NOTE</strong> The setting of this pragma is ignored unless <a href="p_warn_implicitconv.htm">warn_implicitconv</a> is on.</p>
<p></p>
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