PNG_FORMAT_NUMBER  620 3rdparty/libpng/png.c          APPEND_STRING(PNG_FORMAT_NUMBER(number_buf, format, (value)))
PNG_FORMAT_NUMBER  256 3rdparty/libpng/pngerror.c    png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value));
PNG_FORMAT_NUMBER  272 3rdparty/libpng/pngerror.c    str = PNG_FORMAT_NUMBER(buffer, format, u);