commit f5f1b59d3b98f1a00180cbaf0a12115fb58b573a
author Bram Moolenaar <Bram@vim.org> Thu Jul 15 23:44:54 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Thu Jul 15 23:44:54 2021 +0200
tree de59f01c6ffe4357b23bd4818485b1ab8d996551
parent d8cee76b498507c48706f651aeb78b93b5376d00

patch 8.2.3171: another illegal memory access in test

Problem:    Another illegal memory access in test.
Solution:   Check pointer is after the start of the line.

src/userfunc.c

diff --git a/src/userfunc.c b/src/userfunc.c
index d8c943b..3dfa680 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -875,7 +875,7 @@
 		--end;
 		while (end > p && VIM_ISWHITE(*end))
 		    --end;
-		if (end > p - 2 && end[-1] == '=' && end[0] == '>')
+		if (end > p + 2 && end[-1] == '=' && end[0] == '>')
 		{
 		    // found trailing "=> {", start of an inline function
 		    if (nesting == MAX_FUNC_NESTING - 1)