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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Incorrect description of warning message for -Wconversion"
href="http://llvm.org/bugs/show_bug.cgi?id=18562">18562</a>
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<th>Summary</th>
<td>Incorrect description of warning message for -Wconversion
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Frontend
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>chengniansun@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>For the assignment "int g = 0x828D9300L;", clang warns:
implicit conversion changes signedness: 'long' to 'int'
However, the conversion from signed long to signed int does not change the
signedness. The only changed part is the value.
Please refer to the following steps for more details.
$: cat signedness-chang.c
int g = 0x828D9300L;
$: clang-trunk -Wconversion -c signedness-chang.c
signedness-chang.c:1:9: warning: implicit conversion changes signedness: 'long'
to 'int'
[-Wsign-conversion]
int g = 0x828D9300L;
~ ^~~~~~~~~~~
1 warning generated.
$: clang-trunk --version
clang version 3.5 (trunk 199549)
Target: x86_64-unknown-linux-gnu
Thread model: posix
$: gcc-trunk -Wconversion -c signedness-chang.c
signedness-chang.c:1:1: warning: conversion to ‘int’ alters ‘long int’ constant
value [-Wconversion]
int g = 0x828D9300L;
^</pre>
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