diffutils/src/analyze.c

827 diff_2_files (struct comparison *cmp)
842   if (read_files (cmp->file, files_can_be_treated_as_binary))
845       if (cmp->file[0].stat.st_size != cmp->file[1].stat.st_size
846 	  && (cmp->file[0].desc < 0 || S_ISREG (cmp->file[0].stat.st_mode))
847 	  && (cmp->file[1].desc < 0 || S_ISREG (cmp->file[1].stat.st_mode)))
851       else if (cmp->file[0].desc == cmp->file[1].desc)
861 			buffer_lcm (STAT_BLOCKSIZE (cmp->file[0].stat),
862 				    STAT_BLOCKSIZE (cmp->file[1].stat),
866 	    cmp->file[f].buffer = xrealloc (cmp->file[f].buffer, buffer_size);
868 	  for (;; cmp->file[0].buffered = cmp->file[1].buffered = 0)
872 		if (0 <= cmp->file[f].desc)
873 		  file_block_read (&cmp->file[f],
874 				   buffer_size - cmp->file[f].buffered);
877 	      if (cmp->file[0].buffered != cmp->file[1].buffered
878 		  || memcmp (cmp->file[0].buffer,
879 			     cmp->file[1].buffer,
880 			     cmp->file[0].buffered))
887 	      if (cmp->file[0].buffered != buffer_size)
895       changes = briefly_report (changes, cmp->file);
904       size_t s = cmp->file[0].buffered_lines + cmp->file[1].buffered_lines + 4;
906       cmp->file[0].changed = flag_space + 1;
907       cmp->file[1].changed = flag_space + cmp->file[0].buffered_lines + 3;
913       discard_confusing_lines (cmp->file);
918       xvec = cmp->file[0].undiscarded;
919       yvec = cmp->file[1].undiscarded;
920       diags = (cmp->file[0].nondiscarded_lines
921 	       + cmp->file[1].nondiscarded_lines + 3);
924       fdiag += cmp->file[1].nondiscarded_lines + 1;
925       bdiag += cmp->file[1].nondiscarded_lines + 1;
934       files[0] = cmp->file[0];
935       files[1] = cmp->file[1];
937       compareseq (0, cmp->file[0].nondiscarded_lines,
938 		  0, cmp->file[1].nondiscarded_lines, minimal);
940       free (fdiag - (cmp->file[1].nondiscarded_lines + 1));
945       shift_boundaries (cmp->file);
951 	script = build_reverse_script (cmp->file);
953 	script = build_script (cmp->file);
988 	changes = briefly_report (changes, cmp->file);
995 	      setup_output (file_label[0] ? file_label[0] : cmp->file[0].name,
996 			    file_label[1] ? file_label[1] : cmp->file[1].name,
997 			    cmp->parent != 0);
1041       free (cmp->file[0].undiscarded);
1047 	  free (cmp->file[f].equivs);
1048 	  free (cmp->file[f].linbuf + cmp->file[f].linbuf_base);
1059 	  if (cmp->file[f].missing_newline)
1062 		     file_label[f] ? file_label[f] : cmp->file[f].name,
1068   if (cmp->file[0].buffer != cmp->file[1].buffer)
1069     free (cmp->file[0].buffer);
1070   free (cmp->file[1].buffer);