Method hex_val

Marlin/src/gcode/parser.h:447–453

    }

    static uint16_t hex_val(const char c, uint16_t const dval=0) {
      if (!seen(c) || *value_ptr != 'x') return dval;
      uint16_t out = 0;
      for (char *vp = value_ptr + 1; HEXCHR(*vp) >= 0; vp++)
        out = ((out) << 8) | HEXCHR(*vp);
      return out;
    }

  #endif
};