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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-06-17 02:37:32 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-06-17 02:37:32 +0000 |
commit | 4fedad85efa84f25cad199eb325d3a300778a046 (patch) | |
tree | 98e8c59f05a3a61e4e271d2e1ab100494a59b954 /numeric.c | |
parent | 90d065530784a110681ccef1326d63eac9cdc469 (diff) | |
download | ruby-4fedad85efa84f25cad199eb325d3a300778a046.tar.gz |
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 'numeric.c')
-rw-r--r-- | numeric.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -1276,7 +1276,7 @@ rb_float_pow(VALUE x, VALUE y) dx = RFLOAT_VALUE(x); dy = RFLOAT_VALUE(y); if (dx < 0 && dy != round(dy)) - return num_funcall1(rb_complex_raw1(x), idPow, y); + return rb_dbl_complex_polar(pow(-dx, dy), dy); } else { return rb_num_coerce_bin(x, y, idPow); @@ -4010,7 +4010,7 @@ fix_pow(VALUE x, VALUE y) if (a == 1) return DBL2NUM(1.0); { if (a < 0 && dy != round(dy)) - return num_funcall1(rb_complex_raw1(x), idPow, y); + return rb_dbl_complex_polar(pow(-(double)a, dy), dy); return DBL2NUM(pow((double)a, dy)); } } |