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-rw-r--r--Src/params.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/Src/params.c b/Src/params.c
index fd0872130..446cccc7e 100644
--- a/Src/params.c
+++ b/Src/params.c
@@ -3046,9 +3046,21 @@ mod_export void
stdunsetfn(Param pm, UNUSED(int exp))
{
switch (PM_TYPE(pm->node.flags)) {
- case PM_SCALAR: pm->gsu.s->setfn(pm, NULL); break;
- case PM_ARRAY: pm->gsu.a->setfn(pm, NULL); break;
- case PM_HASHED: pm->gsu.h->setfn(pm, NULL); break;
+ case PM_SCALAR:
+ if (pm->gsu.s->setfn)
+ pm->gsu.s->setfn(pm, NULL);
+ break;
+
+ case PM_ARRAY:
+ if (pm->gsu.a->setfn)
+ pm->gsu.a->setfn(pm, NULL);
+ break;
+
+ case PM_HASHED:
+ if (pm->gsu.h->setfn)
+ pm->gsu.h->setfn(pm, NULL);
+ break;
+
default:
if (!(pm->node.flags & PM_SPECIAL))
pm->u.str = NULL;