find_last_not_of()

How can I find a first or last character that is not a character that i am searching in a string in my C++ app? What kind of methods I can use to find the first character equal to none of the characters in the given string in a std::string? How can I use find_first_not_of(), find_last_not_of() methods with strings? Modern C++ uses Wide Strings and Unicode Strings to support worldwide…