Add missing size_type cast to basic_string
#5562
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Jun 9, 2025
| @@ -2395,7 +2395,7 @@ _CONSTEXPR20 typename _Container::size_type _Erase_remove(_Container& _Cont, con | |||
| const auto _Old_size = _Cont.size(); | |||
| _STD _Seek_wrapped(_First, _STD remove(_STD _Get_unwrapped(_First), _STD _Get_unwrapped(_Last), _Val)); | |||
| _Cont.erase(_First, _Last); | |||
| return _Old_size - _Cont.size(); | |||
| return static_cast<typename _Container::size_type>(_Old_size - _Cont.size()); | |||
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It seems that _Erase_remove(_if) can be C++20 (and later) -only now, which allows us to drop typename, as we've removed std::experimental::erase(_if).
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Towards #5546.
There're some currently problematic cases:
size_typeis narrower thanintand hence usual arithmetic conversion changes the type toint, andsize_typeis 64-bit andsize_tis 32-bit (on a 32-bit platform).Explicit cast will resolve warnings on narrowing and errors with type mismatch in
std::max/std::minin these cases.