fix for py/rna mesh.materials[:] where empty materials exist, would raise a runtime exception.

problem was there was no way to tell the difference between getting an empty item from a collection or the item not being found.

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/makesrna/intern/rna_internal_types.h b/source/blender/makesrna/intern/rna_internal_types.h
index 216533a8708..ee484c27c03 100644
--- a/source/blender/makesrna/intern/rna_internal_types.h
+++ b/source/blender/makesrna/intern/rna_internal_types.h
@@ -93,8 +93,8 @@ typedef void (*PropCollectionNextFunc)(struct CollectionPropertyIterator *iter);
 typedef void (*PropCollectionEndFunc)(struct CollectionPropertyIterator *iter);
 typedef PointerRNA (*PropCollectionGetFunc)(struct CollectionPropertyIterator *iter);
 typedef int (*PropCollectionLengthFunc)(struct PointerRNA *ptr);
-typedef PointerRNA (*PropCollectionLookupIntFunc)(struct PointerRNA *ptr, int key);
-typedef PointerRNA (*PropCollectionLookupStringFunc)(struct PointerRNA *ptr, const char *key);
+typedef int (*PropCollectionLookupIntFunc)(struct PointerRNA *ptr, int key, struct PointerRNA *r_ptr);
+typedef int (*PropCollectionLookupStringFunc)(struct PointerRNA *ptr, const char *key, struct PointerRNA *r_ptr);
 
 /* Container - generic abstracted container of RNA properties */
 typedef struct ContainerRNA {