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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang++ 10.0 fails with libstdc++ from gcc 10-20200216"
href="https://bugs.llvm.org/show_bug.cgi?id=44955">44955</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang++ 10.0 fails with libstdc++ from gcc 10-20200216
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>10.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>bero@lindev.ch
</td>
</tr>
<tr>
<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Not 100% sure whether this is a libstdc++ bug or a clang bug. (Also filed a bug
report against libstdc++ at
<a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93818">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93818</a>).
Using libstdc++ from gcc 10-20200216 breaks using it with clang 10 in C++20
mode.
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1329:17:
error: missing 'typename' prior to dependent type name
'iterator_traits<iterator_t<_Vp> >::iterator_category'
using _Cat = iterator_traits<iterator_t<_Vp>>::iterator_category;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1512:47:
error: ambiguous deduction for template arguments of '_RangeAdaptor'
inline constexpr __adaptor::_RangeAdaptor filter
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1073:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1513:9)]
_RangeAdaptor(const _Callable& = {})
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1078:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1513:9)]
_RangeAdaptor(_Callable __callable)
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1552:19:
error: missing 'typename' prior to dependent type name
'iterator_traits<iterator_t<_Base> >::iterator_category'
using _Cat = iterator_traits<iterator_t<_Base>>::iterator_category;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1853:47:
error: ambiguous deduction for template arguments of '_RangeAdaptor'
inline constexpr __adaptor::_RangeAdaptor transform
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1073:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1854:9)]
_RangeAdaptor(const _Callable& = {})
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1078:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1854:9)]
_RangeAdaptor(_Callable __callable)
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2000:47:
error: ambiguous deduction for template arguments of '_RangeAdaptor'
inline constexpr __adaptor::_RangeAdaptor take
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1073:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2001:9)]
_RangeAdaptor(const _Callable& = {})
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1078:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2001:9)]
_RangeAdaptor(_Callable __callable)
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2092:47:
error: ambiguous deduction for template arguments of '_RangeAdaptor'
inline constexpr __adaptor::_RangeAdaptor take_while
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1073:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2093:9)]
_RangeAdaptor(const _Callable& = {})
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1078:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2093:9)]
_RangeAdaptor(_Callable __callable)
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2169:47:
error: ambiguous deduction for template arguments of '_RangeAdaptor'
inline constexpr __adaptor::_RangeAdaptor drop
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1073:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2170:9)]
_RangeAdaptor(const _Callable& = {})
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1078:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2170:9)]
_RangeAdaptor(_Callable __callable)
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2225:47:
error: ambiguous deduction for template arguments of '_RangeAdaptor'
inline constexpr __adaptor::_RangeAdaptor drop_while
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1073:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2226:9)]
_RangeAdaptor(const _Callable& = {})
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1078:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2226:9)]
_RangeAdaptor(_Callable __callable)
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2297:10:
error: missing 'typename' prior to dependent type name
'iterator_traits<iterator_t<_Base> >::iterator_category'
= iterator_traits<iterator_t<_Base>>::iterator_category;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2299:10:
error: missing 'typename' prior to dependent type name
'iterator_traits<iterator_t<range_reference_t<_Base> > >::iterator_category'
= iterator_traits<iterator_t<range_reference_t<_Base>>>
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2768:19:
error: missing 'typename' prior to dependent type name
'iterator_traits<iterator_t<_Base> >::iterator_category'
using _Cat = iterator_traits<iterator_t<_Base>>::iterator_category;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2942:47:
error: ambiguous deduction for template arguments of '_RangeAdaptor'
inline constexpr __adaptor::_RangeAdaptor split
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1073:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2943:9)]
_RangeAdaptor(const _Callable& = {})
^
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:1078:2:
note: candidate function [with _Callable = std::ranges::views::(lambda at
/usr/bin/../lib64/gcc/x86_64-openmandriva-linux-gnu/10.0.0/../../../../include/c++/10.0.0/ranges:2943:9)]
_RangeAdaptor(_Callable __callable)
^
12 errors generated.
libstdc++ from gcc 10-20200209 works perfectly with both gcc and clang.</pre>
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</p>
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