diff options
Diffstat (limited to 'src/patch.c')
| -rw-r--r-- | src/patch.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/patch.c b/src/patch.c index adb2f25..441732e 100644 --- a/src/patch.c +++ b/src/patch.c @@ -33,6 +33,7 @@ #include <xalloc.h> #include <gl_linked_list.h> #include <gl_xlist.h> +#include <minmax.h> /* procedures */ @@ -1107,8 +1108,8 @@ locate_hunk (lin fuzz) lin min_where = last_frozen_line + 1 - (prefix_context - prefix_fuzz); lin max_pos_offset = max_where - first_guess; lin max_neg_offset = first_guess - min_where; - lin max_offset = (max_pos_offset < max_neg_offset - ? max_neg_offset : max_pos_offset); + lin max_offset = MAX(max_pos_offset, max_neg_offset); + lin min_offset; if (!pat_lines) /* null range matches always */ return first_guess; @@ -1154,7 +1155,10 @@ locate_hunk (lin fuzz) return 0; } - for (offset = 0; offset <= max_offset; offset++) { + min_offset = max_pos_offset < 0 ? first_guess - max_where + : max_neg_offset < 0 ? first_guess - min_where + : 0; + for (offset = min_offset; offset <= max_offset; offset++) { char numbuf0[LINENUM_LENGTH_BOUND + 1]; char numbuf1[LINENUM_LENGTH_BOUND + 1]; if (offset <= max_pos_offset @@ -1166,7 +1170,7 @@ locate_hunk (lin fuzz) in_offset += offset; return first_guess+offset; } - if (0 < offset && offset <= max_neg_offset + if (offset <= max_neg_offset && patch_match (first_guess, -offset, prefix_fuzz, suffix_fuzz)) { if (debug & 1) say ("Offset changing from %s to %s\n", |