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| author | Tatsuhiko Kubo <[email protected]> | 2014-08-25 17:17:37 +0900 |
|---|---|---|
| committer | Tatsuhiko Kubo <[email protected]> | 2014-08-25 17:17:37 +0900 |
| commit | 0e9f98c430410bd92ec94b6f0600ba8e0946d37d (patch) | |
| tree | 1768f78838b3d1b107d1d6d3b423661251f9f967 | |
| parent | b01b3c44728f66e0db1a9ab66fca7f6e8213f5e5 (diff) | |
| download | mruby-0e9f98c430410bd92ec94b6f0600ba8e0946d37d.tar.gz mruby-0e9f98c430410bd92ec94b6f0600ba8e0946d37d.zip | |
Fix Numeric#pow behavior.
* Before
2 ** -1 #=> 0
* After
2 ** -1 #=> 0.5
| -rw-r--r-- | src/numeric.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/numeric.c b/src/numeric.c index 90ea6c965..3f211ca70 100644 --- a/src/numeric.c +++ b/src/numeric.c @@ -54,11 +54,12 @@ static mrb_value num_pow(mrb_state *mrb, mrb_value x) { mrb_value y; - mrb_float d; + mrb_float d, yv; mrb_get_args(mrb, "o", &y); - d = pow(mrb_to_flo(mrb, x), mrb_to_flo(mrb, y)); - if (mrb_fixnum_p(x) && mrb_fixnum_p(y) && FIXABLE(d)) + yv = mrb_to_flo(mrb, y); + d = pow(mrb_to_flo(mrb, x), yv); + if (mrb_fixnum_p(x) && mrb_fixnum_p(y) && FIXABLE(d) && yv > 0) return mrb_fixnum_value((mrb_int)d); return mrb_float_value(mrb, d); } |