I haven't looked recently but several years ago I was shocked to discover the GNU libstdc++ didn't use strchr or memchr. It used a hand-coded for loop because i

I haven't looked recently but several years ago I was shocked to discover the GNU libstdc++ didn't use strchr or memchr. It used a hand-coded for loop because it was a template for various kinds of character. There was no specialization for 8-bit char, either. As a result std::string was disgustingly slow compared to C code.