diff/src/analyze.c

797 diff_2_files (struct comparison *cmp)
812   if (read_files (cmp->file, files_can_be_treated_as_binary))
815       if (cmp->file[0].stat.st_size != cmp->file[1].stat.st_size
816 	  && (cmp->file[0].desc < 0 || S_ISREG (cmp->file[0].stat.st_mode))
817 	  && (cmp->file[1].desc < 0 || S_ISREG (cmp->file[1].stat.st_mode)))
821       else if (cmp->file[0].desc == cmp->file[1].desc)
831 			buffer_lcm (STAT_BLOCKSIZE (cmp->file[0].stat),
832 				    STAT_BLOCKSIZE (cmp->file[1].stat),
836 	    cmp->file[f].buffer = xrealloc (cmp->file[f].buffer, buffer_size);
838 	  for (;; cmp->file[0].buffered = cmp->file[1].buffered = 0)
842 		if (0 <= cmp->file[f].desc)
843 		  file_block_read (&cmp->file[f],
844 				   buffer_size - cmp->file[f].buffered);
847 	      if (cmp->file[0].buffered != cmp->file[1].buffered
848 		  || memcmp (cmp->file[0].buffer,
849 			     cmp->file[1].buffer,
850 			     cmp->file[0].buffered))
857 	      if (cmp->file[0].buffered != buffer_size)
865       changes = briefly_report (changes, cmp->file);
874       size_t s = cmp->file[0].buffered_lines + cmp->file[1].buffered_lines + 4;
876       cmp->file[0].changed = flag_space + 1;
877       cmp->file[1].changed = flag_space + cmp->file[0].buffered_lines + 3;
883       discard_confusing_lines (cmp->file);
888       xvec = cmp->file[0].undiscarded;
889       yvec = cmp->file[1].undiscarded;
890       diags = (cmp->file[0].nondiscarded_lines
891 	       + cmp->file[1].nondiscarded_lines + 3);
894       fdiag += cmp->file[1].nondiscarded_lines + 1;
895       bdiag += cmp->file[1].nondiscarded_lines + 1;
904       files[0] = cmp->file[0];
905       files[1] = cmp->file[1];
907       compareseq (0, cmp->file[0].nondiscarded_lines,
908 		  0, cmp->file[1].nondiscarded_lines, minimal);
910       free (fdiag - (cmp->file[1].nondiscarded_lines + 1));
915       shift_boundaries (cmp->file);
921 	script = build_reverse_script (cmp->file);
923 	script = build_script (cmp->file);
958 	changes = briefly_report (changes, cmp->file);
965 	      setup_output (file_label[0] ? file_label[0] : cmp->file[0].name,
966 			    file_label[1] ? file_label[1] : cmp->file[1].name,
967 			    cmp->parent != 0);
1011       free (cmp->file[0].undiscarded);
1017 	  free (cmp->file[f].equivs);
1018 	  free (cmp->file[f].linbuf + cmp->file[f].linbuf_base);
1029 	  if (cmp->file[f].missing_newline)
1032 		     file_label[f] ? file_label[f] : cmp->file[f].name,
1038   if (cmp->file[0].buffer != cmp->file[1].buffer)
1039     free (cmp->file[0].buffer);
1040   free (cmp->file[1].buffer);