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* time.c (mul): condition refined.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27071 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2010-03-27 22:14:23 +00:00
parent d5c005fd36
commit 075cbd2ad6
2 changed files with 13 additions and 5 deletions
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6
ChangeLog
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@ -1,4 +1,8 @@
2010-03-27 Tanaka Akira <akr@fsij.org>
Sun Mar 28 07:12:41 2010 Tanaka Akira <akr@fsij.org>
* time.c (mul): condition refined.
Sun Mar 28 02:14:13 2010 Tanaka Akira <akr@fsij.org>
* time.c: fix previos commit.

12
time.c
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@ -252,18 +252,22 @@ mul(VALUE x, VALUE y)
if (FIXNUM_P(x) && FIXNUM_P(y)) {
#if HAVE_LONG_LONG && SIZEOF_LONG * 2 <= SIZEOF_LONG_LONG
LONG_LONG ll = (LONG_LONG)FIX2LONG(x) * FIX2LONG(y);
if (FIXABLE(ll)) return LONG2FIX(ll);
if (FIXABLE(ll))
return LONG2FIX(ll);
return LL2NUM(ll);
#else
long a, b, c;
a = FIX2LONG(x);
if (a == 0) return x;
if (a == 0)
return x;
b = FIX2LONG(y);
c = a * b;
if (c / a == b && FIXABLE(c)) return LONG2FIX(c);
if (c / a == b)
return LONG2NUM(c);
#endif
}
if (TYPE(x) == T_BIGNUM) return rb_big_mul(x, y);
if (TYPE(x) == T_BIGNUM)
return rb_big_mul(x, y);
return rb_funcall(x, '*', 1, y);
}