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patch 8.2.2176: crash with a sequence of fold commands

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Problem:    Crash with a sequence of fold commands.
Solution:   Bail out when there are no folds at all.  Add a test (Dominique
            Pellé) (closes #7515)
This commit is contained in:
Bram Moolenaar
2020-12-21 14:01:41 +01:00
parent 9aff970204
commit 6a78f32844
3 changed files with 10 additions and 1 deletions
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2
src/fold.c
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@@ -916,7 +916,7 @@ foldMoveTo(
{
if (!foldFind(gap, curwin->w_cursor.lnum - lnum_off, &fp))
{
if (!updown)
if (!updown || gap->ga_len == 0)
break;
// When moving up, consider a fold above the cursor; when