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vim-patch:8.2.4258: Coverity warns for array overrun

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Problem:    Coverity warns for array overrun.
Solution:   Restrict depth to MAXWLEN - 1.
6970e1e36a
This commit is contained in:
zeertzjq
2022-04-04 07:46:33 +08:00
parent 945caeeda2
commit 683648a396
1 changed files with 2 additions and 2 deletions
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4
src/nvim/spell.c
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@@ -3690,7 +3690,7 @@ static void suggest_try_change(suginfo_T *su)
// Check the maximum score, if we go over it we won't try this change. // Check the maximum score, if we go over it we won't try this change.
#define TRY_DEEPER(su, stack, depth, add) \ #define TRY_DEEPER(su, stack, depth, add) \
((depth) < MAXWLEN && (stack)[depth].ts_score + (add) < (su)->su_maxscore) ((depth) < MAXWLEN - 1 && (stack)[depth].ts_score + (add) < (su)->su_maxscore)
// Try finding suggestions by adding/removing/swapping letters. // Try finding suggestions by adding/removing/swapping letters.
// //
@@ -3828,7 +3828,7 @@ static void suggest_trie_walk(suginfo_T *su, langp_T *lp, char_u *fword, bool so
// At end of a prefix or at start of prefixtree: check for // At end of a prefix or at start of prefixtree: check for
// following word. // following word.
if (depth < MAXWLEN && (byts[arridx] == 0 || n == STATE_NOPREFIX)) { if (depth < MAXWLEN - 1 && (byts[arridx] == 0 || n == STATE_NOPREFIX)) {
// Set su->su_badflags to the caps type at this position. // Set su->su_badflags to the caps type at this position.
// Use the caps type until here for the prefix itself. // Use the caps type until here for the prefix itself.
n = nofold_len(fword, sp->ts_fidx, su->su_badptr); n = nofold_len(fword, sp->ts_fidx, su->su_badptr);