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-rw-r--r--erts/emulator/beam/erl_hashmap.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_hashmap.h b/erts/emulator/beam/erl_hashmap.h
index 1964787218..f05505bae0 100644
--- a/erts/emulator/beam/erl_hashmap.h
+++ b/erts/emulator/beam/erl_hashmap.h
@@ -127,6 +127,9 @@ typedef struct hashmap_head_s {
#define MAP_HEADER_HAMT_HEAD_BITMAP(Bmp) \
MAKE_MAP_HEADER(MAP_HEADER_TAG_HAMT_HEAD_BITMAP,0x1,Bmp)
+#define MAP_HEADER_HAMT_NODE_ARRAY \
+ make_arityval(16)
+
#define MAP_HEADER_HAMT_NODE_BITMAP(Bmp) \
MAKE_MAP_HEADER(MAP_HEADER_TAG_HAMT_NODE_BITMAP,0x0,Bmp)