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| author | Tomasz Kamiński <tkaminsk@redhat.com> | 2025-10-27 14:19:47 +0100 |
|---|---|---|
| committer | Tomasz Kamiński <tkaminsk@redhat.com> | 2025-10-29 17:13:59 +0100 |
| commit | 8728f60b9750ea10abd1a02db7972a6ff6ef2eae (patch) | |
| tree | 47d21c3b358c09e496164580cc5810cd3bb95b9b /contrib/gcc-changelog/git_commit.py | |
| parent | 52e300124d2eaad0f19ccc0a49f95fd605a1de69 (diff) | |
| download | gcc-8728f60b9750ea10abd1a02db7972a6ff6ef2eae.zip gcc-8728f60b9750ea10abd1a02db7972a6ff6ef2eae.tar.gz gcc-8728f60b9750ea10abd1a02db7972a6ff6ef2eae.tar.bz2 | |
libstdc++: Implement const copy-assignment for tuple<> [PR119721]
This patch completes the implementation of P2321R2, giving tuple proper proxy
reference semantics.
The assignment operator is implemented as a template constrained to accept only
tuple<>. Consequently, the language does not consider it a copy assignment
operator, which prevents tuple<> from losing its trivially copyable status.
The _Tuple template parameter is defaulted, ensuring the operator remains
a viable candidate for assignment with an empty brace-init list.
PR libstdc++/119721
libstdc++-v3/ChangeLog:
* include/std/tuple (tuple<>::operator=(const _Tuple&) const)
[__cpp_lib_ranges_zip]: Define.
* testsuite/23_containers/tuple/cons/119721.cc: Test const
assignment.
Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
Signed-off-by: Tomasz Kamiński <tkaminsk@redhat.com>
Diffstat (limited to 'contrib/gcc-changelog/git_commit.py')
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