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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Clang misses -Wsign-conversion warning in a simple code"
href="https://bugs.llvm.org/show_bug.cgi?id=46171">46171</a>
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<th>Summary</th>
<td>Clang misses -Wsign-conversion warning in a simple code
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>haoxintu@gmail.com
</td>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>$cat test.cc
int main(){
int a = 1;
int array[a];
return 0;
}
in GCC
$g++ -Wsign-conversion test.cc
<source>: In function 'int main()':
<source>:3:15: warning: conversion to 'long unsigned int' from 'int' may change
the sign of the result [-Wsign-conversion]
3 | int array[a];
|
But there is no warnings in clang-trunk.
<a href="https://godbolt.org/z/xCQiuT">https://godbolt.org/z/xCQiuT</a></pre>
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