diff options
Diffstat (limited to 'xdiff/xpatience.c')
| -rw-r--r-- | xdiff/xpatience.c | 33 |
1 files changed, 5 insertions, 28 deletions
diff --git a/xdiff/xpatience.c b/xdiff/xpatience.c index e42c16a807..9f91702de7 100644 --- a/xdiff/xpatience.c +++ b/xdiff/xpatience.c @@ -1,6 +1,6 @@ /* * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003-2009 Davide Libenzi, Johannes E. Schindelin + * Copyright (C) 2003-2016 Davide Libenzi, Johannes E. Schindelin * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -166,7 +166,7 @@ static int binary_search(struct entry **sequence, int longest, int left = -1, right = longest; while (left + 1 < right) { - int middle = (left + right) / 2; + int middle = left + (right - left) / 2; /* by construction, no two entries can be equal */ if (sequence[middle]->line2 > entry->line2) right = middle; @@ -287,34 +287,11 @@ static int walk_common_sequence(struct hashmap *map, struct entry *first, static int fall_back_to_classic_diff(struct hashmap *map, int line1, int count1, int line2, int count2) { - /* - * This probably does not work outside Git, since - * we have a very simple mmfile structure. - * - * Note: ideally, we would reuse the prepared environment, but - * the libxdiff interface does not (yet) allow for diffing only - * ranges of lines instead of the whole files. - */ - mmfile_t subfile1, subfile2; xpparam_t xpp; - xdfenv_t env; - - subfile1.ptr = (char *)map->env->xdf1.recs[line1 - 1]->ptr; - subfile1.size = map->env->xdf1.recs[line1 + count1 - 2]->ptr + - map->env->xdf1.recs[line1 + count1 - 2]->size - subfile1.ptr; - subfile2.ptr = (char *)map->env->xdf2.recs[line2 - 1]->ptr; - subfile2.size = map->env->xdf2.recs[line2 + count2 - 2]->ptr + - map->env->xdf2.recs[line2 + count2 - 2]->size - subfile2.ptr; - xpp.flags = map->xpp->flags & ~XDF_PATIENCE_DIFF; - if (xdl_do_diff(&subfile1, &subfile2, &xpp, &env) < 0) - return -1; + xpp.flags = map->xpp->flags & ~XDF_DIFF_ALGORITHM_MASK; - memcpy(map->env->xdf1.rchg + line1 - 1, env.xdf1.rchg, count1); - memcpy(map->env->xdf2.rchg + line2 - 1, env.xdf2.rchg, count2); - - xdl_free_env(&env); - - return 0; + return xdl_fall_back_diff(map->env, &xpp, + line1, count1, line2, count2); } /* |