patch 8.2.3449: sort fails if the sort compare function returns 999
Problem: Sort fails if the sort compare function returns 999.
Solution: Adjust value to -1 / 0 / 1. (Yasuhiro Matsumoto, closes #8884)
diff --git a/src/list.c b/src/list.c
index 8e67a61..16e5983 100644
--- a/src/list.c
+++ b/src/list.c
@@ -1945,7 +1945,13 @@
if (res == FAIL)
res = ITEM_COMPARE_FAIL;
else
+ {
res = (int)tv_get_number_chk(&rettv, &sortinfo->item_compare_func_err);
+ if (res > 0)
+ res = 1;
+ else if (res < 0)
+ res = -1;
+ }
if (sortinfo->item_compare_func_err)
res = ITEM_COMPARE_FAIL; // return value has wrong type
clear_tv(&rettv);