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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-06-17 02:37:32 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-06-17 02:37:32 +0000
commit4fedad85efa84f25cad199eb325d3a300778a046 (patch)
tree98e8c59f05a3a61e4e271d2e1ab100494a59b954 /bignum.c
parent90d065530784a110681ccef1326d63eac9cdc469 (diff)
refine Integer#** and Float#**
* complex.c (rb_dbl_complex_polar): utility function, which returns more precise value in right angle cases. * bignum.c (rb_big_pow): use rb_dbl_complex_polar(). * numeric.c (rb_float_pow, fix_pow): create a Complex by polar form. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63678 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'bignum.c')
-rw-r--r--bignum.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/bignum.c b/bignum.c
index 00d46ee662..7e5ce4d585 100644
--- a/bignum.c
+++ b/bignum.c
@@ -6209,9 +6209,8 @@ rb_big_pow(VALUE x, VALUE y)
if (y == INT2FIX(0)) return INT2FIX(1);
if (RB_FLOAT_TYPE_P(y)) {
d = RFLOAT_VALUE(y);
- if ((BIGNUM_NEGATIVE_P(x) && !BIGZEROP(x)) && d != round(d)) {
- x = DBL2NUM(pow(-rb_big2dbl(x), d));
- return rb_complex_polar(x, DBL2NUM(d * M_PI));
+ if ((BIGNUM_NEGATIVE_P(x) && !BIGZEROP(x))) {
+ return rb_dbl_complex_polar(pow(-rb_big2dbl(x), d), d);
}
}
else if (RB_BIGNUM_TYPE_P(y)) {