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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Duplicate -Wc++98-compat warning message in a try-block"
href="https://bugs.llvm.org/show_bug.cgi?id=46425">46425</a>
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<th>Summary</th>
<td>Duplicate -Wc++98-compat warning message in a try-block
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Frontend
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>haoxintu@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
</td>
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<p>
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<pre>This case, bug.cc, Clang might emit the duplicated warning messages.
$cat bug.cc
void foo(char16_t)
{
char32_t var = 0;
try { }
catch (char16_t b) {}
catch (char32_t c) {}
}
$clang++ -Wc++98-compat -c bug.cc
bug.cc:1:10: warning: 'char16_t' type specifier is incompatible with C++98
[-Wc++98-compat]
void foo(char16_t)
^
bug.cc:3:5: warning: 'char32_t' type specifier is incompatible with C++98
[-Wc++98-compat]
char32_t var = 0;
^
bug.cc:5:12: warning: 'char16_t' type specifier is incompatible with C++98
[-Wc++98-compat]
catch (char16_t b) {}
^
bug.cc:5:12: warning: 'char16_t' type specifier is incompatible with C++98
[-Wc++98-compat]
bug.cc:6:12: warning: 'char32_t' type specifier is incompatible with C++98
[-Wc++98-compat]
catch (char32_t c) {}
^
bug.cc:6:12: warning: 'char32_t' type specifier is incompatible with C++98
[-Wc++98-compat]
6 warnings generated.
Clang emits one warning message in line1 and line3, but gives two duplicated
messages in line5 and line6, respectively.
I have tested in recently released Clang versions, they all have this issue.</pre>
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