diff options
| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-08-03 11:30:19 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-08-03 11:30:19 +0000 |
| commit | 292c39098da3d6c9036eabcb9f8a5f7b07c86ab0 (patch) | |
| tree | 68be083dd5ad5bdbb239e14de19d8b47dd589970 /rational.c | |
| parent | b5dc2576cc60930099cd942ffa1de2c2d759471b (diff) | |
* bignum.c (rb_big_eq): never equal to infinity.
[ruby-core:31603]
* rational.c (nurat_div): hack for integral float divisor.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28844 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'rational.c')
| -rw-r--r-- | rational.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/rational.c b/rational.c index 1d4f1abbd5..3965144b61 100644 --- a/rational.c +++ b/rational.c @@ -869,6 +869,23 @@ nurat_div(VALUE self, VALUE other) other, ONE, '/'); } case T_FLOAT: + { + double x = RFLOAT_VALUE(other), den; + get_dat1(self); + + if (isnan(x)) return DBL2NUM(NAN); + if (isinf(x)) { + if (RTEST(f_negative_p(dat->num)) == (x < 0)) { + return DBL2NUM(INFINITY); + } + else { + return DBL2NUM(-INFINITY); + } + } + if (modf(x, &den) == 0.0) { + return rb_rational_raw2(dat->num, f_mul(rb_dbl2big(den), dat->den)); + } + } return rb_funcall(f_to_f(self), '/', 1, other); case T_RATIONAL: if (f_zero_p(other)) |