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author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-30 03:59:02 +0000 |
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committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-30 03:59:02 +0000 |
commit | 8a2df1ce3f143b49d43b3899692c6ed559b6d53c (patch) | |
tree | 08913b0c034536b9712c9084b1531fba25e57286 /numeric.c | |
parent | d73b431e5068f2b5a2c696dca6d84a8c394602b1 (diff) | |
download | ruby-8a2df1ce3f143b49d43b3899692c6ed559b6d53c.tar.gz |
{Fixnum,Bignum}#** is unified into Integer.
* numeric.c (rb_int_pow): {Fixnum,Bignum}#** is unified into
Integer.
* bignum.c (rb_big_pow): Don't define Bignum#**.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'numeric.c')
-rw-r--r-- | numeric.c | 26 |
1 files changed, 22 insertions, 4 deletions
@@ -3557,16 +3557,22 @@ fix_divmod(VALUE x, VALUE y) } /* - * Document-method: Fixnum#** + * Document-method: Integer#** * call-seq: - * fix ** numeric -> numeric_result + * integer ** numeric -> numeric_result * - * Raises +fix+ to the power of +numeric+, which may be negative or + * Raises +integer+ to the power of +numeric+, which may be negative or * fractional. + * The result may be a Fixnum, Bignum, or Float * * 2 ** 3 #=> 8 * 2 ** -1 #=> (1/2) * 2 ** 0.5 #=> 1.4142135623731 + * + * 123456789 ** 2 #=> 15241578750190521 + * 123456789 ** 1.2 #=> 5126464716.09932 + * 123456789 ** -2 #=> 6.5610001194102e-17 + * */ static VALUE @@ -3666,6 +3672,18 @@ fix_pow(VALUE x, VALUE y) } } +static VALUE +rb_int_pow(VALUE x, VALUE y) +{ + if (FIXNUM_P(x)) { + return fix_pow(x, y); + } + else if (RB_TYPE_P(x, T_BIGNUM)) { + return rb_big_pow(x, y); + } + return Qnil; +} + /* * Document-method: Fixnum#== * call-seq: @@ -4799,7 +4817,7 @@ Init_Numeric(void) rb_define_method(rb_cFixnum, "modulo", fix_mod, 1); rb_define_method(rb_cFixnum, "divmod", fix_divmod, 1); rb_define_method(rb_cFixnum, "fdiv", fix_fdiv, 1); - rb_define_method(rb_cFixnum, "**", fix_pow, 1); + rb_define_method(rb_cInteger, "**", rb_int_pow, 1); rb_define_method(rb_cInteger, "abs", int_abs, 0); rb_define_method(rb_cInteger, "magnitude", int_abs, 0); |