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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - libcxx fails with -Wdeprecated-copy"
href="https://bugs.llvm.org/show_bug.cgi?id=44145">44145</a>
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<th>Summary</th>
<td>libcxx fails with -Wdeprecated-copy
</td>
</tr>
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<th>Product</th>
<td>libc++
</td>
</tr>
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<th>Version</th>
<td>unspecified
</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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>david.bolvansky@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
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<p>
<div>
<pre>Santizers are built with libcxx (and sadly, with -Werror). With
-Wdeprecated-copy, any build fails:
/b/sanitizer-x86_64-linux/build/llvm-project/libcxx/include/__bit_reference:66:22:
warning: definition of implicit copy constructor for
'__bit_reference<std::__1::__bitset<0, 0>, true>' is deprecated because it has
a user-declared copy assignment operator [-Wdeprecated-copy]
__bit_reference& operator=(const __bit_reference& __x) _NOEXCEPT
^
/b/sanitizer-x86_64-linux/build/llvm-project/libcxx/include/bitset:628:17:
note: in implicit copy constructor for
'std::__1::__bit_reference<std::__1::__bitset<0, 0>, true>' first required here
{return reference(0, 1);}
/b/sanitizer-x86_64-linux/build/llvm-project/libcxx/include/__bit_reference:150:28:
warning: definition of implicit copy constructor for
'__bit_const_reference<std::__1::__bitset<0, 0> >' is deprecated because it has
a user-declared copy assignment operator [-Wdeprecated-copy]
__bit_const_reference& operator=(const __bit_const_reference& __x);
^
/b/sanitizer-x86_64-linux/build/llvm-project/libcxx/include/bitset:630:17:
note: in implicit copy constructor for
'std::__1::__bit_const_reference<std::__1::__bitset<0, 0> >' first required
here
{return const_reference(0, 1);}
Log:
<a href="http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/24606/steps/bootstrap%20clang/logs/stdio">http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/24606/steps/bootstrap%20clang/logs/stdio</a>
Please fix, so we can re-enable -Wdeprecated-copy under -Wextra again.</pre>
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</p>
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