diff options
| -rw-r--r-- | erts/emulator/beam/erl_term.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_term.h b/erts/emulator/beam/erl_term.h index 982e63ee31..37014ccf94 100644 --- a/erts/emulator/beam/erl_term.h +++ b/erts/emulator/beam/erl_term.h @@ -893,7 +893,8 @@ typedef struct external_thing_ { (((x) & _TAG_HEADER_MASK) == _TAG_HEADER_EXTERNAL_REF) #define is_external_header(x) \ - (((x) & (_TAG_HEADER_MASK-_BINARY_XXX_MASK)) == _TAG_HEADER_EXTERNAL_PID) + (((x) & (_TAG_HEADER_MASK-_BINARY_XXX_MASK)) == _TAG_HEADER_EXTERNAL_PID \ + && ((x) & _TAG_HEADER_MASK) != _TAG_HEADER_MAP) #define is_external(x) (is_boxed((x)) && is_external_header(*boxed_val((x)))) |