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author	Jonathan Wakely <jwakely@redhat.com>
	Wed, 5 Mar 2025 18:06:25 +0000 (18:06 +0000)
committer	Jonathan Wakely <redi@gcc.gnu.org>
	Wed, 5 Mar 2025 22:11:06 +0000 (22:11 +0000)
commit	c7449f1b1511abbee1c6b060090eda4d2d6b1879
tree	aef6fdf38257fc38520f7854735b0a3961cbbaa5	tree
parent	a08a5bc4b3998bd4f8d0cca491b8ab6c93769e07	commit \| diff

libstdc++: Make enumerate_view::iterator::operator- noexcept

Implement LWG 3912, approved in Varna, June 2023.

libstdc++-v3/ChangeLog:

* include/std/ranges (enumerate_view::_Iterator::operator-):
Add noexcept, as per LWG 3912.
* testsuite/std/ranges/adaptors/enumerate/1.cc: Check iterator
difference is noexcept.

libstdc++-v3/include/std/ranges		diff \| blob \| blame \| history
libstdc++-v3/testsuite/std/ranges/adaptors/enumerate/1.cc		diff \| blob \| blame \| history

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