commit 61e07b2394e12f757160cac421ec5c45dc4c074d
author Bram Moolenaar <Bram@vim.org> Sun Dec 20 17:59:53 2020 +0100
committer Bram Moolenaar <Bram@vim.org> Sun Dec 20 17:59:53 2020 +0100
tree 94a7ca36327ff69316500ae0cdb87195a5d49187
parent f112f30a82f17114d8b08a0fb90928cd19440581

patch 8.2.2171: valgrind warning for using uninitialized value

Problem:    Valgrind warning for using uninitialized value.
Solution:   Do not use "startp" or "endp" unless there is a match.

src/regexp_nfa.c

diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index da80ee9..cbfed49 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -7236,7 +7236,7 @@
 			|| (end->lnum == start->lnum && end->col < start->col))
 	    rex.reg_mmatch->endpos[0] = rex.reg_mmatch->startpos[0];
     }
-    else
+    else if (retval > 0)
     {
 	if (rex.reg_match->endp[0] < rex.reg_match->startp[0])
 	    rex.reg_match->endp[0] = rex.reg_match->startp[0];