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| author | Jonathan Wakely <jwakely@redhat.com> | 2025-03-06 20:23:29 +0000 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2025-03-07 20:36:23 +0000 |
| commit | 4b180459626df64dac758da8760d868c2604ddf2 (patch) | |
| tree | 8331e2dec09950b69c4fa82f5ae60fbc86e61458 /gcc | |
| parent | b191e8bdecf881d11c1544c441e38f4c18392a15 (diff) | |
| download | gcc-4b180459626df64dac758da8760d868c2604ddf2.zip gcc-4b180459626df64dac758da8760d868c2604ddf2.tar.gz gcc-4b180459626df64dac758da8760d868c2604ddf2.tar.bz2 | |
libstdc++: Add poison pill for chrono::from_stream
LWG 3956 (approved in Hagenberg, February 2025) decided that from_stream
should be found *only* by ADL, not ordinary unqualified lookup. Add a
poison pill overload to chrono::__detail where the __parsable concept
and operator>>(basic_istream&, _Parser) are defined. This ensures that
when they use from_stream unqualified ordinary lookup finds the poison
pill, which is deleted, so a usable overload resolution result can only
be found by ADL.
We already have the std/time/parse/parse.cc test checking that ADL
works, so this doesn't add a new test.
libstdc++-v3/ChangeLog:
* include/bits/chrono_io.h (chrono::__detail::from_stream): Add
deleted function as poison pill for unqualified lookup.
Reviewed-by: Patrick Palka <ppalka@redhat.com>
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions