Implement LWG-3944 Formatters converting sequences of char to sequences of wchar_t by frederick-vs-ja · Pull Request #4784 · microsoft/STL (original) (raw)

Fixes #4760.

I guess resulted error messages (e.g. in the case of std::format("L{}", ""), pre-existing for std::format("{}", L"")) still need to be improved, which can be done in another PR.