diff options
| author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-03-12 14:18:02 +0000 |
|---|---|---|
| committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-03-12 14:18:02 +0000 |
| commit | 0179055d2d146d495b93c148e431cf103b55208f (patch) | |
| tree | 8823f2dafecd4990a45b9979ac4202d4c94c7dc4 /rational.c | |
| parent | 398098555620384bc2796dbb3f977a81f640af39 (diff) | |
merge revision(s) 57688,57689: [Backport #13242]
rational.c: infinity in power
* rational.c (nurat_expt): return Infinity due to overflow.
[ruby-core:79686] [Bug #13242]:
rational.c: infinity in power
* rational.c (nurat_expt): return 0 due to overflow.
[ruby-core:79686] [Bug #13242]:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57911 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'rational.c')
| -rw-r--r-- | rational.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/rational.c b/rational.c index 8d05342ed5..460f82cfeb 100644 --- a/rational.c +++ b/rational.c @@ -1039,6 +1039,14 @@ nurat_expt(VALUE self, VALUE other) num = ONE; den = ONE; } + if (RB_FLOAT_TYPE_P(num)) { /* infinity due to overflow */ + if (RB_FLOAT_TYPE_P(den)) return DBL2NUM(NAN); + return num; + } + if (RB_FLOAT_TYPE_P(den)) { /* infinity due to overflow */ + num = ZERO; + den = ONE; + } return f_rational_new2(CLASS_OF(self), num, den); } } |