diff options
Diffstat (limited to 'erts/emulator/beam/erl_map.c')
| -rw-r--r-- | erts/emulator/beam/erl_map.c | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/erts/emulator/beam/erl_map.c b/erts/emulator/beam/erl_map.c index 2fff7f9390..5e740aacdd 100644 --- a/erts/emulator/beam/erl_map.c +++ b/erts/emulator/beam/erl_map.c @@ -58,6 +58,8 @@ * - maps:size/1 * - maps:without/2 * + * DEBUG: for sharing calculation + * - erts_internal:map_to_tuple_keys/1 */ /* erlang:map_size/1 @@ -647,22 +649,24 @@ int erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res) { *mhp++ = tup; if (is_immed(key)) { - while(n--) { + while (1) { if (*ks == key) { goto found_key; - } else { + } else if (--n) { *mhp++ = *vs++; *thp++ = *ks++; - } + } else + break; } } else { - while(n--) { + while(1) { if (EQ(*ks, key)) { goto found_key; - } else { + } else if (--n) { *mhp++ = *vs++; *thp++ = *ks++; - } + } else + break; } } @@ -676,7 +680,7 @@ int erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res) { found_key: /* Copy rest of keys and values */ - if (n) { + if (--n) { sys_memcpy(mhp, vs+1, n*sizeof(Eterm)); sys_memcpy(thp, ks+1, n*sizeof(Eterm)); } @@ -817,3 +821,17 @@ int erts_validate_and_sort_map(map_t* mp) } return 1; } + +/* + * erts_internal:map_to_tuple_keys/1 + * + * Used in erts_debug:size/1 + */ + +BIF_RETTYPE erts_internal_map_to_tuple_keys_1(BIF_ALIST_1) { + if (is_map(BIF_ARG_1)) { + map_t *mp = (map_t*)map_val(BIF_ARG_1); + BIF_RET(mp->keys); + } + BIF_ERROR(BIF_P, BADARG); +} |