diff options
| author | François Dumont <fdumont@gcc.gnu.org> | 2021-01-28 19:00:56 +0100 |
|---|---|---|
| committer | François Dumont <fdumont@gcc.gnu.org> | 2021-02-01 19:19:53 +0100 |
| commit | 33a1e511b57465d898429740377466894a0b247d (patch) | |
| tree | e95166c245283bfb7dd3120a3673ae0ee5e4ff9d /gcc | |
| parent | 11056ab7687f7156846e93557c9171b77713bd7e (diff) | |
| download | gcc-33a1e511b57465d898429740377466894a0b247d.zip gcc-33a1e511b57465d898429740377466894a0b247d.tar.gz gcc-33a1e511b57465d898429740377466894a0b247d.tar.bz2 | |
libstdc++: Make deque iterator operator- usable with value-init iterators
N3644 implies that operator- can be used on value-init iterators. We now return
0 if both iterators are value initialized. If only one is value initialized we
keep the UB by returning the result of a normal computation which is a meaningless
value.
libstdc++-v3/ChangeLog:
PR libstdc++/70303
* include/bits/stl_deque.h (std::deque<>::operator-(iterator, iterator)):
Return 0 if both iterators are value-initialized.
* testsuite/23_containers/deque/70303.cc: New test.
* testsuite/23_containers/vector/70303.cc: New test.
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions