commit 45491660787043ea412719544881db691338d730
author Bram Moolenaar <Bram@vim.org> Sat Feb 12 21:59:51 2022 +0000
committer Bram Moolenaar <Bram@vim.org> Sat Feb 12 21:59:51 2022 +0000
tree 2e40848fce68beb7739b44c2f47c878a49ab4b8b
parent 8e38555ece7d3fe1edc6681ec70fe5586a524862

patch 8.2.4364: MS-Windows: still running out of memory for a very long line

Problem:    MS-Windows: still running out of memory for a very long line.
Solution:   Check for negative length.

src/indent.c

diff --git a/src/indent.c b/src/indent.c
index 3148495..95fc74e 100644
--- a/src/indent.c
+++ b/src/indent.c
@@ -1726,7 +1726,7 @@
 			len = num_spaces + num_tabs;
 			old_len = (long)STRLEN(ptr);
 			new_len = old_len - col + start_col + len + 1;
-			if (new_len >= MAXCOL)
+			if (new_len <= 0 || new_len >= MAXCOL)
 			{
 			    emsg(_(e_resulting_text_too_long));
 			    break;