Method find_first_not_of

util/generic/strbase.h:458–460

    }

    inline size_t find_first_not_of(TCharType c) const noexcept {
        return find_first_not_of(c, 0);
    }

    inline size_t find_first_not_of(TCharType c, size_t pos) const noexcept {
        return find_first_not_of(TStringView(&c, 1), pos);