kotovalexarian-likes-github/ruby--ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
Code Releases Activity

rational.c: optimize Rational#**

Browse source 
* rational.c (nurat_expt): optimize Rational#**.
  Author: Tadashi Saito <tad.a.digger@gmail.com>

* numeric.c (rb_float_pow): rename flo_pow() to rb_float_pow()
  and remove static to be exporetd.

* internal.h (rb_int_pow, rb_float_pow): exported.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56725 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mrkn 2016-11-11 16:38:28 +00:00
parent 75bf28bb42
commit d8769bffe5
3 changed files with 14 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
internal.h
View file

@ -1171,6 +1171,8 @@ VALUE rb_fix_plus(VALUE x, VALUE y);
VALUE rb_int_ge(VALUE x, VALUE y);
enum ruby_num_rounding_mode rb_num_get_rounding_option(VALUE opts);
double rb_int_fdiv_double(VALUE x, VALUE y);
VALUE rb_int_pow(VALUE x, VALUE y);
VALUE rb_float_pow(VALUE x, VALUE y);
#if USE_FLONUM
#define RUBY_BIT_ROTL(v, n) (((v) << (n)) | ((v) >> ((sizeof(v) * 8) - n)))

8
numeric.c
View file

@ -1291,8 +1291,8 @@ flo_divmod(VALUE x, VALUE y)
* 2.0**3 #=> 8.0
*/
static VALUE
flo_pow(VALUE x, VALUE y)
VALUE
rb_float_pow(VALUE x, VALUE y)
{
double dx, dy;
if (RB_TYPE_P(y, T_FIXNUM)) {
@ -3931,7 +3931,7 @@ fix_pow(VALUE x, VALUE y)
}
}
static VALUE
VALUE
rb_int_pow(VALUE x, VALUE y)
{
if (FIXNUM_P(x)) {
@ -5395,7 +5395,7 @@ Init_Numeric(void)
rb_define_method(rb_cFloat, "%", flo_mod, 1);
rb_define_method(rb_cFloat, "modulo", flo_mod, 1);
rb_define_method(rb_cFloat, "divmod", flo_divmod, 1);
rb_define_method(rb_cFloat, "**", flo_pow, 1);
rb_define_method(rb_cFloat, "**", rb_float_pow, 1);
rb_define_method(rb_cFloat, "==", flo_eq, 1);
rb_define_method(rb_cFloat, "===", flo_eq, 1);
rb_define_method(rb_cFloat, "<=>", flo_cmp, 1);

14
rational.c
View file

@ -966,6 +966,8 @@ f_odd_p(VALUE integer)
return Qfalse;
}
static VALUE nurat_to_f(VALUE self);
/*
* call-seq:
* rat ** numeric -> numeric
@ -1022,12 +1024,12 @@ nurat_expt(VALUE self, VALUE other)
switch (FIX2INT(f_cmp(other, ZERO))) {
case 1:
num = f_expt(dat->num, other);
den = f_expt(dat->den, other);
num = rb_int_pow(dat->num, other);
den = rb_int_pow(dat->den, other);
break;
case -1:
num = f_expt(dat->den, f_negate(other));
den = f_expt(dat->num, f_negate(other));
num = rb_int_pow(dat->den, rb_int_uminus(other));
den = rb_int_pow(dat->num, rb_int_uminus(other));
break;
default:
num = ONE;
@ -1039,10 +1041,10 @@ nurat_expt(VALUE self, VALUE other)
}
else if (RB_TYPE_P(other, T_BIGNUM)) {
rb_warn("in a**b, b may be too big");
return f_expt(f_to_f(self), other);
return rb_float_pow(nurat_to_f(self), other);
}
else if (RB_TYPE_P(other, T_FLOAT) || RB_TYPE_P(other, T_RATIONAL)) {
return f_expt(f_to_f(self), other);
return rb_float_pow(nurat_to_f(self), other);
}
else {
return rb_num_coerce_bin(self, other, id_expt);