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| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-09-29 00:45:41 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-09-29 00:45:41 +0000 |
| commit | 4e86521c13f8b9e185729fdd4f172bd43fc74583 (patch) | |
| tree | 03dd917a9fb6e1980ad4a9d6152be97159ef50c5 /rational.c | |
| parent | 0b876c7536add4b0b8d09e931d318688f3b5fb9a (diff) | |
| download | ruby-4e86521c13f8b9e185729fdd4f172bd43fc74583.tar.gz | |
rational.c: may be float
* rational.c (f_muldiv): Integer#** can return Rational with Float
right now. [ruby-core:89212] [Bug #15175]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64877 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'rational.c')
| -rw-r--r-- | rational.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/rational.c b/rational.c index 69a0bf6ab6..3fcf82bce5 100644 --- a/rational.c +++ b/rational.c @@ -805,6 +805,16 @@ f_muldiv(VALUE self, VALUE anum, VALUE aden, VALUE bnum, VALUE bden, int k) VALUE num, den; assert(RB_TYPE_P(self, T_RATIONAL)); + + /* Integer#** can return Rational with Float right now */ + if (RB_FLOAT_TYPE_P(anum) || RB_FLOAT_TYPE_P(aden) || + RB_FLOAT_TYPE_P(bnum) || RB_FLOAT_TYPE_P(bden)) { + double an = NUM2DBL(anum), ad = NUM2DBL(aden); + double bn = NUM2DBL(bnum), bd = NUM2DBL(bden); + double x = (an * bn) / (ad * bd); + return DBL2NUM(x); + } + assert(RB_INTEGER_TYPE_P(anum)); assert(RB_INTEGER_TYPE_P(aden)); assert(RB_INTEGER_TYPE_P(bnum)); |