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| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | rational.c | 6 |
2 files changed, 10 insertions, 0 deletions
@@ -1,3 +1,7 @@ +Sat Dec 15 18:24:21 2012 Tadayoshi Funaba <tadf@dotrb.org> + + * rational.c (f_round_common): should check overflow. + Sat Dec 15 18:00:00 2012 Tadayoshi Funaba <tadf@dotrb.org> * ratioanl.c (float_rationalize): reduced. diff --git a/rational.c b/rational.c index c8d5688c94..afa4bd4cec 100644 --- a/rational.c +++ b/rational.c @@ -1210,6 +1210,12 @@ f_round_common(int argc, VALUE *argv, VALUE self, VALUE (*func)(VALUE)) b = f_expt10(n); s = f_mul(self, b); + if (k_float_p(s)) { + if (f_lt_p(n, ZERO)) + return ZERO; + return self; + } + s = (*func)(s); s = f_div(f_rational_new_bang1(CLASS_OF(self), s), b); |