Function to_upper_case

include/fplus/string_tools.hpp:140–148

// to_upper_case("ChaRacTer&WorDs34") == "CHARACTER&WORDS34"
template <typename String>
String to_upper_case(const String& str)
{
    typedef typename String::value_type Char;
    return transform([](Char c) -> Char {
        return static_cast<Char>(
            std::toupper(static_cast<unsigned char>(c)));
    },
        str);
}

// API search type: to_upper_case_loc : (Locale, String) -> String
// fwd bind count: 1