text: #include <stdio.h>
  #include "gd.h"
  #include "gdtest.h"
  
  int main() {
  	/* Declare the image */
  	gdImagePtr im, ref;
  
  	/* Declare output files */
  	/* FILE *pngout; */
  	int black, white;
  
  	im = gdImageCreateTrueColor(63318, 771);
  
  	/* Allocate the color white (red, green and blue all maximum). */
  	white = gdImageColorAllocate(im, 255, 255, 255);
  	/* Allocate the color white (red, green and blue all maximum). */
  	black = gdImageColorAllocate(im, 0, 0, 0);
  
  	/* white background */
  	gdImageFill(im, 1, 1, white);
  
      /* Make a reference copy. */
      ref = gdImageClone(im);
  
  	gdImageSetAntiAliased(im, black);
  
  	/* This line used to fail. */
  	gdImageLine(im, 28562, 631, 34266, 750, gdAntiAliased);
  
      gdTestAssert(gdMaxPixelDiff(im, ref) > 0);
  
  #if 0
      {
          FILE *pngout;
  
          /* Open a file for writing. "wb" means "write binary",
           * important under MSDOS, harmless under Unix. */
          pngout = fopen("test.png", "wb");
  
          /* Output the image to the disk file in PNG format. */
          gdImagePng(im, pngout);
  
          /* Close the files. */
          fclose(pngout);
      }
  #endif
  
  	/* Destroy the image in memory. */
  	gdImageDestroy(im);
      gdImageDestroy(ref);
  
      return gdNumFailures();
  }
  