The "doc" here are comments on the std::fill function in gcc, not the actual reference doc for std::fill. It isn't even correct: 1) I find no evidence wmemset

The "doc" here are comments on the std::fill function in gcc, not the actual reference doc for std::fill. It isn't even correct: 1) I find no evidence wmemset is ever used (e.g., for wchar_t). 2) It doesn't work for "char types", as in the example in this post: the memory is char type but when literal zero is passed, it breaks.