Function endsWith

tests/catch.h:7740–7742

        return s.size() >= prefix.size() && s.substr( 0, prefix.size() ) == prefix;
    }
    bool endsWith( std::string const& s, std::string const& suffix ) {
        return s.size() >= suffix.size() && s.substr( s.size()-suffix.size(), suffix.size() ) == suffix;
    }
    bool contains( std::string const& s, std::string const& infix ) {
        return s.find( infix ) != std::string::npos;
    }