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vim-patch:8.2.1553: crash in edit test

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Problem:    Crash in edit test.
Solution:   Avoid using invalid pointer.
2c93c685e3
This commit is contained in:
James McCoy
2020-09-03 23:04:38 -04:00
parent 0c851e5226
commit ae8f108732
1 changed files with 23 additions and 19 deletions
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6
src/nvim/fold.c
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@@ -573,6 +573,9 @@ void foldCreate(win_T *wp, linenr_T start, linenr_T end)
// Find the place to insert the new fold // Find the place to insert the new fold
gap = &wp->w_folds; gap = &wp->w_folds;
if (gap->ga_len == 0) {
i = 0;
} else {
for (;;) { for (;;) {
if (!foldFind(gap, start_rel, &fp)) if (!foldFind(gap, start_rel, &fp))
break; break;
@@ -596,8 +599,9 @@ void foldCreate(win_T *wp, linenr_T start, linenr_T end)
break; break;
} }
} }
i = (int)(fp - (fold_T *)gap->ga_data); i = (int)(fp - (fold_T *)gap->ga_data);
}
ga_grow(gap, 1); ga_grow(gap, 1);
{ {
fp = (fold_T *)gap->ga_data + i; fp = (fold_T *)gap->ga_data + i;