more on NULL versus functions

Function pointers are not void*.  See also
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ce4ea956d24eab5089a143bba38126f2b11b55b6
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1 files changed, 1 insertions, 1 deletions

diff --git a/gc.c b/gc.c
index 320de1c9dd..76d112ca53 100644
--- a/gc.c
+++ b/gc.c
@@ -8228,7 +8228,7 @@ update_cc_tbl(rb_objspace_t *objspace, VALUE klass)
 {
     struct rb_id_table *tbl = RCLASS_CC_TBL(klass);
     if (tbl) {
-        rb_id_table_foreach_with_replace(tbl, update_cc_tbl_i, NULL, objspace);
+        rb_id_table_foreach_with_replace(tbl, update_cc_tbl_i, 0, objspace);
     }
 }