diff options
| author | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-08-01 13:20:22 +0000 |
|---|---|---|
| committer | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-08-01 13:20:22 +0000 |
| commit | 98685cc70fd4ea86bccc81983283c29eb7b2afd7 (patch) | |
| tree | 0006f6a4e9833bbea199551b3c9d0bbefc564ce9 /ext | |
| parent | c29b801afad1dc5cb4227bcef9e4bc004c967b8a (diff) | |
| download | ruby-98685cc70fd4ea86bccc81983283c29eb7b2afd7.tar.gz | |
* ext/bigdecimal/bigdecimal.c (BigDecimal_hash): use rb_memhash and take care of negative finite numbers properly.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28825 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/bigdecimal/bigdecimal.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c index 146145ce41..239fe05a76 100644 --- a/ext/bigdecimal/bigdecimal.c +++ b/ext/bigdecimal/bigdecimal.c @@ -228,12 +228,9 @@ BigDecimal_hash(VALUE self) GUARD_OBJ(p,GetVpValue(self,1)); hash = (U_LONG)p->sign; /* hash!=2: the case for 0(1),NaN(0) or +-Infinity(3) is sign itself */ - if(hash==2) { - for(i = 0; i < p->Prec;i++) { - hash = 31 * hash + p->frac[i]; - hash ^= p->frac[i]; - } - hash += p->exponent; + if(hash == 2 || hash == -2) { + hash ^= rb_memhash(p->frac, sizeof(U_LONG)*p->Prec); + hash += p->exponent; } return INT2FIX(hash); } |