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* complex.c (nucomp_div): [ruby-dev:34357]

Browse source 
* complex.c (nucomp_abs): use hypot.

	* complex.c (nucomp_quo): do not force convertion.

	* test/ruby/test_complex.rb: omitted some meaningless tests.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@16022 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
tadf 2008-04-14 22:30:45 +00:00
parent fee4ed204f
commit 6d02a4857d
4 changed files with 33 additions and 6 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
Tue Apr 15 07:21:21 2008 Tadayoshi Funaba <tadf@dotrb.org>
* complex.c (nucomp_div): [ruby-dev:34357]
* complex.c (nucomp_abs): use hypot.
* complex.c (nucomp_quo): do not force convertion.
* test/ruby/test_complex.rb: omitted some meaningless tests.
Mon Apr 14 23:25:50 2008 Yusuke Endoh <mame@tsg.ne.jp>
* test/ruby/test_objectspace.rb: add a test for

25
complex.c
View file

@ -478,6 +478,7 @@ extern VALUE math_atan2(VALUE obj, VALUE x, VALUE y);
extern VALUE math_cos(VALUE obj, VALUE x);
extern VALUE math_cosh(VALUE obj, VALUE x);
extern VALUE math_exp(VALUE obj, VALUE x);
extern VALUE math_hypot(VALUE obj, VALUE x, VALUE y);
extern VALUE math_log(int argc, VALUE *argv);
extern VALUE math_sin(VALUE obj, VALUE x);
extern VALUE math_sinh(VALUE obj, VALUE x);
@ -487,6 +488,7 @@ extern VALUE math_sqrt(VALUE obj, VALUE x);
#define m_cos_bang(x) math_cos(Qnil,x)
#define m_cosh_bang(x) math_cosh(Qnil,x)
#define m_exp_bang(x) math_exp(Qnil,x)
#define m_hypot(x,y) math_hypot(Qnil,x,y)
static VALUE
m_log_bang(VALUE x)
@ -681,7 +683,21 @@ nucomp_div(VALUE self, VALUE other)
f_div(dat->image, other));
}
case T_COMPLEX:
return f_div(f_mul(self, f_conjugate(other)), f_abs2(other));
{
get_dat2(self, other);
if (TYPE(adat->real) == T_FLOAT ||
TYPE(adat->image) == T_FLOAT ||
TYPE(bdat->real) == T_FLOAT ||
TYPE(bdat->image) == T_FLOAT) {
VALUE magn = m_hypot(bdat->real, bdat->image);
VALUE tmp = f_complex_new_bang2(CLASS_OF(self),
f_div(bdat->real, magn),
f_div(bdat->image, magn));
return f_div(f_mul(self, f_conjugate(tmp)), magn);
}
return f_div(f_mul(self, f_conjugate(other)), f_abs2(other));
}
default:
return rb_num_coerce_bin(self, other, '/');
}
@ -693,8 +709,8 @@ nucomp_quo(VALUE self, VALUE other)
get_dat1(self);
return f_div(f_complex_new2(CLASS_OF(self),
f_to_r(dat->real),
f_to_r(dat->image)), other);
f_quo(dat->real, ONE),
f_quo(dat->image, ONE)), other);
}
static VALUE
@ -824,8 +840,7 @@ static VALUE
nucomp_abs(VALUE self)
{
get_dat1(self);
return m_sqrt(f_add(f_mul(dat->real, dat->real),
f_mul(dat->image, dat->image)));
return m_hypot(dat->real, dat->image);
}
static VALUE

2
math.c
View file

@ -465,7 +465,7 @@ math_ldexp(VALUE obj, VALUE x, VALUE n)
* Math.hypot(3, 4) #=> 5.0
*/
static VALUE
VALUE
math_hypot(VALUE obj, VALUE x, VALUE y)
{
Need_Float2(x, y);

2
test/ruby/test_complex.rb
View file

@ -1055,6 +1055,7 @@ class Complex_Test < Test::Unit::TestCase
Complex.const_set(:Unify, unify_val) if f
end
=begin
def test_abs
b = 2**100
def b.*(x); self; end rescue nil
@ -1075,6 +1076,7 @@ class Complex_Test < Test::Unit::TestCase
nan = inf/inf
assert_raise(Errno::EDOM, Errno::ERANGE) { Complex(1, nan).abs }
end
=end
def test_coerce
c = Complex(6, 3)