67 check_multiply(int product, int x, int y)  in check_multiply()  function
286     if ( !check_multiply(len, x, y) )  in imageop_grey2mono()
325     if ( !check_multiply(len, x, y) )  in imageop_grey2grey4()
362     if ( !check_multiply(len, x, y) )  in imageop_grey2grey2()
398     if ( !check_multiply(len, x, y) )  in imageop_dither2mono()
442     if ( !check_multiply(len, x, y) )  in imageop_dither2grey2()
480     if ( !check_multiply(nlen, x, y) )  in imageop_mono2grey()
519     if ( !check_multiply(nlen, x, y) ) {  in imageop_grey22grey()
558     if ( !check_multiply(nlen, x, y) )  in imageop_grey42grey()
599     if ( !check_multiply(nlen, x, y) )  in imageop_rgb2rgb8()
640     if ( !check_multiply(len, x, y) )  in imageop_rgb82rgb()
693     if ( !check_multiply(nlen, x, y) )  in imageop_rgb2grey()
735     if ( !check_multiply(len, x, y) )  in imageop_grey2rgb()