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* ext/bigdecimal/bigdecimal.c (BigDecimal_hash): use rb_memhash and take care of negative finite numbers properly.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28825 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mrkn 2010-08-01 13:20:22 +00:00
parent c29b801afa
commit 98685cc70f
2 changed files with 8 additions and 6 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Sun Aug 1 22:16:30 2010 Kenta Murata <mrkn@mrkn.jp>
* ext/bigdecimal/bigdecimal.c (BigDecimal_hash): use rb_memhash and
take care of negative finite numbers properly.
Sun Aug 1 20:57:22 2010 Tanaka Akira <akr@fsij.org>
* ext/pathname/pathname.c (path_realpath): Pathname#realpath translated

9
ext/bigdecimal/bigdecimal.c
View file

@ -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);
}