patch 7.4.1816
Problem: Looping over a null list throws an error.
Solution: Skip over the for loop.
diff --git a/src/eval.c b/src/eval.c
index fa2f839..83bac72 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -3292,11 +3292,16 @@
if (!skip)
{
l = tv.vval.v_list;
- if (tv.v_type != VAR_LIST || l == NULL)
+ if (tv.v_type != VAR_LIST)
{
EMSG(_(e_listreq));
clear_tv(&tv);
}
+ else if (l == NULL)
+ {
+ /* a null list is like an empty list: do nothing */
+ clear_tv(&tv);
+ }
else
{
/* No need to increment the refcount, it's already set for the