gcc/libstdc++-v3/include at 64c9fcfa70edeba5e1889a6cd02be64abe751e04 - gcc

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Jonathan Wakely 7bafcc3617 libstdc++: Make CTAD ignore tuple(const Types&...) constructor [PR121771]

This is similar to the r16-3536-g0bb0d1d2880d56 change for std::pair, so
that CTAD ignores the tuple(const Types&...) constructor and only uses
the tuple(Types...) -> tuple<Types...> deduction guide. This ensures
that the deduced type comes from the decayed argument types.

libstdc++-v3/ChangeLog:

	PR libstdc++/121771
	* include/std/tuple (tuple::tuple(const Elements&...)): Use
	type_identity_t to prevent constructor being used for CTAD.
	(tuple::tuple(allocator_arg_t, const A&, const Elements&...)):
	Likewise.
	* testsuite/20_util/tuple/cons/121771.cc: New test.

Reviewed-by: Ville Voutilainen <ville.voutilainen@gmail.com>

2026-02-13 09:06:31 +00:00

backward

Update copyright years.

2026-01-02 09:56:11 +01:00

bits

libstdc++/regex: Avoid -Wunused-parameter warnings in _Executor

2026-02-12 15:17:57 -05:00

Update copyright years.

2026-01-02 09:56:11 +01:00

c_compatibility

Update copyright years.

2026-01-02 09:56:11 +01:00