diff options
Diffstat (limited to 'erts/emulator/beam/utils.c')
| -rw-r--r-- | erts/emulator/beam/utils.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index bf6d9fff50..aecfe04a75 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -955,12 +955,14 @@ tail_recur: UINT32_HASH_RET(external_ref_numbers(term)[0],FUNNY_NUMBER9,FUNNY_NUMBER10); case FLOAT_DEF: { - FloatDef ff; - GET_DOUBLE(term, ff); - hash = hash*FUNNY_NUMBER6 + (ff.fw[0] ^ ff.fw[1]); - break; + FloatDef ff; + GET_DOUBLE(term, ff); + if (ff.fd == 0.0f) { + ff.fd = 0.0f; /* ensure pos. 0.0 */ + } + hash = hash*FUNNY_NUMBER6 + (ff.fw[0] ^ ff.fw[1]); + break; } - case MAKE_HASH_CDR_PRE_OP: term = (Eterm) WSTACK_POP(stack); if (is_not_list(term)) { @@ -1474,6 +1476,9 @@ make_hash2(Eterm term) { FloatDef ff; GET_DOUBLE(term, ff); + if (ff.fd == 0.0f) { + ff.fd = 0.0f; /* ensure pos. 0.0 */ + } #if defined(WORDS_BIGENDIAN) || defined(DOUBLE_MIDDLE_ENDIAN) UINT32_HASH_2(ff.fw[0], ff.fw[1], HCONST_12); #else @@ -1893,8 +1898,8 @@ make_internal_hash(Eterm term) { FloatDef ff; GET_DOUBLE(term, ff); - if (ff.fd == 0.0) { - ff.fd = 0.0; /* ensure pos. 0.0 */ + if (ff.fd == 0.0f) { + ff.fd = 0.0f; /* ensure pos. 0.0 */ } UINT32_HASH_2(ff.fw[0], ff.fw[1], HCONST_12); goto pop_next; @@ -2079,12 +2084,14 @@ tail_recur: break; case FLOAT_DEF: { - FloatDef ff; - GET_DOUBLE(term, ff); - hash = hash*FUNNY_NUMBER6 + (ff.fw[0] ^ ff.fw[1]); + FloatDef ff; + GET_DOUBLE(term, ff); + if (ff.fd == 0.0f) { + ff.fd = 0.0f; /* ensure pos. 0.0 */ + } + hash = hash*FUNNY_NUMBER6 + (ff.fw[0] ^ ff.fw[1]); } break; - case MAKE_HASH_CDR_PRE_OP: term = (Eterm) WSTACK_POP(stack); if (is_not_list(term)) { |