png_format_number 1781 png.c                      png_format_number(number, number+(sizeof number),
png_format_number 1574 pngpriv.h      PNG_INTERNAL_FUNCTION(png_charp,png_format_number,(png_const_charp start,
png_format_number 1579 pngpriv.h         png_format_number(buffer, buffer + (sizeof buffer), format, number)