Patch 8.2.1972

[Bram Moolenaar]

Patch 8.2.1972
Problem: Crash when recreating nested fold.
Solution: Check for empty growarray. (closes #7278)
Files: src/fold.c, src/testdir/test_fold.vim


*** ../vim-8.2.1971/src/fold.c 2020-11-03 20:05:36.178750002 +0100
--- src/fold.c 2020-11-10 18:22:35.122732565 +0100
***************
*** 640,646 ****
break;
}
}
! i = (int)(fp - (fold_T *)gap->ga_data);
}

if (ga_grow(gap, 1) == OK)
--- 640,649 ----
break;
}
}
! if (gap->ga_len == 0)
! i = 0;
! else
! i = (int)(fp - (fold_T *)gap->ga_data);
}

if (ga_grow(gap, 1) == OK)
*** ../vim-8.2.1971/src/testdir/test_fold.vim 2020-11-03 20:05:36.178750002 +0100
--- src/testdir/test_fold.vim 2020-11-10 18:18:54.751422514 +0100
***************
*** 844,847 ****
--- 844,857 ----
bwipe!
endfunc

+ " this was crashing
+ func Test_fold_create_delete_create()
+ new
+ fold
+ fold
+ normal zd
+ fold
+ bwipe!
+ endfunc
+
" vim: shiftwidth=2 sts=2 expandtab
*** ../vim-8.2.1971/src/version.c 2020-11-10 11:43:52.853854197 +0100
--- src/version.c 2020-11-10 18:19:59.943217450 +0100
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 1972,
/**/

--
hundred-and-one symptoms of being an internet addict:
227. You sleep next to your monitor. Or on top of it.

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
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