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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Wrong return type in std::strchr"
href="https://bugs.llvm.org/show_bug.cgi?id=44169">44169</a>
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<th>Summary</th>
<td>Wrong return type in std::strchr
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>9.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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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>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>bert@bertptrs.nl
</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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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=22876" name="attach_22876" title="Minimal example showcasing the bug">attachment 22876</a> <a href="attachment.cgi?id=22876&action=edit" title="Minimal example showcasing the bug">[details]</a></span>
Minimal example showcasing the bug
According to the standard, the return type of std::strchr should be of the same
constness as the input string. This means that if you provide a char*, you
should get a char*, and if you provide a const char*, you should get a const
char* back.
It seems that Clang 9 (using libstdc++ 6.0.27 as the standard library
implementation) returns a char* regardless of input constness.
Attached is a simple program that reproduces the issue. It compiles when using
GCC (version 9.2) but doesn't in Clang.</pre>
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