Function tolower

pdal/util/Utils.hpp:172–178

Convert a string to lowercase. \return Converted string. **/

      \return  Converted string.
    **/
    inline std::string tolower(const std::string& s)
    {
        std::string out;
        for (size_t i = 0; i < s.size(); ++i)
            out += (char)std::tolower(s[i]);
        return out;
    }

    /**
      Convert a string to uppercase.