diff options
Diffstat (limited to 'erts/emulator/beam/beam_emu.c')
| -rw-r--r-- | erts/emulator/beam/beam_emu.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 1ab8c71685..989066a1ca 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -737,6 +737,17 @@ void** beam_ops; if (is_not_list(x(0))) { Fail; } \ TestHeap(Need, Alive) +#define IsNonemptyListGetList(Src, H, T, Fail) \ + if (is_not_list(Src)) { \ + Fail; \ + } else { \ + Eterm* tmp_ptr = list_val(Src); \ + Eterm hd, tl; \ + hd = CAR(tmp_ptr); \ + tl = CDR(tmp_ptr); \ + H = hd; T = tl; \ + } + #define IsTuple(X, Action) if (is_not_tuple(X)) Action #define IsArity(Pointer, Arity, Fail) \ |