diff options
Diffstat (limited to 'c_src/nif_helpers.h')
| -rw-r--r-- | c_src/nif_helpers.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/c_src/nif_helpers.h b/c_src/nif_helpers.h index d359f50..915cb2e 100644 --- a/c_src/nif_helpers.h +++ b/c_src/nif_helpers.h @@ -98,6 +98,20 @@ return list; \ } +#define NIF_ATOM_TO_ENUM(a, e) if (!strcmp(buf, #a)) { *val = e; return 1; } +#define NIF_ATOM_TO_ENUM_FUNCTION(f, type, enum_list) \ + int f(ErlNifEnv* env, ERL_NIF_TERM a, type* val) \ + { \ + char buf[MAX_ATOM_LENGTH]; \ + \ + if (!enif_get_atom(env, a, buf, MAX_ATOM_LENGTH, ERL_NIF_LATIN1)) \ + return 0; \ + \ + enum_list(NIF_ATOM_TO_ENUM) \ + \ + return 0; \ + } + #define NIF_ENUM_TO_ATOM(a, e) if (id == e) return atom_ ## a; #define NIF_ENUM_TO_ATOM_FUNCTION(f, type, enum_list) \ ERL_NIF_TERM f(type id) \ |