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* complex.c (f_lcm): removed. 

* rational.c (rb_lcm, rb_gcdlcm): added.

	* lib/complex.rb (gcd, lcm, gcdlcm): removed.

	* lib/rational.rb (gcd, lcm, gcdlcm): ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15844 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
tadf 2008-03-27 11:48:00 +00:00
parent 69ad92d9ca
commit d4f5cb67d4
5 changed files with 101 additions and 113 deletions
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10
ChangeLog
View File

@ -1,3 +1,13 @@
Thu Mar 27 20:44:22 2008 Tadayoshi Funaba <tadf@dotrb.org>
* complex.c (f_lcm): removed.
* rational.c (rb_lcm, rb_gcdlcm): added.
* lib/complex.rb (gcd, lcm, gcdlcm): removed.
* lib/rational.rb (gcd, lcm, gcdlcm): ditto.
Wed Mar 26 18:11:26 2008 Yukihiro Matsumoto <matz@ruby-lang.org>
* variable.c (rb_mod_constants): rdoc updated. a patch from

45
complex.c
View File

@ -84,6 +84,22 @@ f_add(VALUE x, VALUE y)
return r;
}
inline static VALUE
f_cmp(VALUE x, VALUE y)
{
VALUE r;
if (FIXNUM_P(x) && FIXNUM_P(y)) {
long c = FIX2LONG(x) - FIX2LONG(y);
if (c > 0)
c = 1;
else if (c < 0)
c = -1;
r = INT2FIX(c);
} else
r = rb_funcall(x, id_cmp, 1, y);
return r;
}
inline static VALUE
f_div(VALUE x, VALUE y)
{
@ -184,22 +200,6 @@ fun1(to_r)
fun1(to_s)
fun1(truncate)
inline static VALUE
f_cmp(VALUE x, VALUE y)
{
VALUE r;
if (FIXNUM_P(x) && FIXNUM_P(y)) {
long c = FIX2LONG(x) - FIX2LONG(y);
if (c > 0)
c = 1;
else if (c < 0)
c = -1;
r = INT2FIX(c);
} else
r = rb_funcall(x, id_cmp, 1, y);
return r;
}
fun2(coerce)
fun2(divmod)
@ -1016,22 +1016,13 @@ nucomp_inexact_p(VALUE self)
return f_boolcast(!nucomp_exact_p(self));
}
extern VALUE rb_gcd(VALUE x, VALUE y);
static VALUE
f_lcm(VALUE x, VALUE y)
{
if (f_zero_p(x) || f_zero_p(y))
return ZERO;
else
return f_abs(f_mul(f_div(x, rb_gcd(x, y)), y));
}
extern VALUE rb_lcm(VALUE x, VALUE y);
static VALUE
nucomp_denominator(VALUE self)
{
get_dat1(self);
return f_lcm(f_denominator(dat->real), f_denominator(dat->image));
return rb_lcm(f_denominator(dat->real), f_denominator(dat->image));
}
static VALUE

32
lib/complex.rb
View File

@ -1,35 +1,3 @@
class Integer
def gcd(other)
min = self.abs
max = other.abs
while min > 0
tmp = min
min = max % min
max = tmp
end
max
end
def lcm(other)
if self.zero? or other.zero?
0
else
(self.div(self.gcd(other)) * other).abs
end
end
def gcdlcm(other)
gcd = self.gcd(other)
if self.zero? or other.zero?
[gcd, 0]
else
[gcd, (self.div(gcd) * other).abs]
end
end
end
module Math
alias exp! exp

32
lib/rational.rb
View File

@ -15,35 +15,3 @@ class Bignum
alias rpower **
end
class Integer
def gcd(other)
min = self.abs
max = other.abs
while min > 0
tmp = min
min = max % min
max = tmp
end
max
end
def lcm(other)
if self.zero? or other.zero?
0
else
(self.div(self.gcd(other)) * other).abs
end
end
def gcdlcm(other)
gcd = self.gcd(other)
if self.zero? or other.zero?
[gcd, 0]
else
[gcd, (self.div(gcd) * other).abs]
end
end
end

95
rational.c
View File

@ -21,9 +21,9 @@
VALUE rb_cRational;
static ID id_Unify, id_cmp, id_coerce, id_convert, id_equal_p, id_expt,
id_floor, id_format,id_idiv, id_inspect, id_negate, id_new, id_new_bang,
id_to_f, id_to_i, id_to_s, id_truncate;
static ID id_Unify, id_abs, id_cmp, id_coerce, id_convert, id_equal_p,
id_expt, id_floor, id_format,id_idiv, id_inspect, id_negate, id_new,
id_new_bang, id_to_f, id_to_i, id_to_s, id_truncate;
#define f_boolcast(x) ((x) ? Qtrue : Qfalse)
@ -67,6 +67,22 @@ f_add(VALUE x, VALUE y)
return r;
}
inline static VALUE
f_cmp(VALUE x, VALUE y)
{
VALUE r;
if (FIXNUM_P(x) && FIXNUM_P(y)) {
long c = FIX2LONG(x) - FIX2LONG(y);
if (c > 0)
c = 1;
else if (c < 0)
c = -1;
r = INT2FIX(c);
} else
r = rb_funcall(x, id_cmp, 1, y);
return r;
}
inline static VALUE
f_div(VALUE x, VALUE y)
{
@ -149,6 +165,7 @@ f_sub(VALUE x, VALUE y)
binop(xor, '^')
fun1(abs)
fun1(floor)
fun1(inspect)
fun1(negate)
@ -157,22 +174,6 @@ fun1(to_i)
fun1(to_s)
fun1(truncate)
inline static VALUE
f_cmp(VALUE x, VALUE y)
{
VALUE r;
if (FIXNUM_P(x) && FIXNUM_P(y)) {
long c = FIX2LONG(x) - FIX2LONG(y);
if (c > 0)
c = 1;
else if (c < 0)
c = -1;
r = INT2FIX(c);
} else
r = rb_funcall(x, id_cmp, 1, y);
return r;
}
fun2(coerce)
inline static VALUE
@ -346,10 +347,13 @@ f_gcd(VALUE x, VALUE y)
}
#endif
VALUE
rb_gcd(VALUE x, VALUE y)
inline static VALUE
f_lcm(VALUE x, VALUE y)
{
return f_gcd(x, y);
if (f_zero_p(x) || f_zero_p(y))
return ZERO;
else
return f_abs(f_mul(f_div(x, f_gcd(x, y)), y));
}
#define get_dat1(x) \
@ -1208,6 +1212,48 @@ nurat_marshal_load(VALUE self, VALUE a)
/* --- */
VALUE
rb_gcd(VALUE self, VALUE other)
{
switch (TYPE(other)) {
case T_FIXNUM:
case T_BIGNUM:
break;
default:
rb_raise(rb_eArgError, "not an integer");
}
return f_gcd(self, other);
}
VALUE
rb_lcm(VALUE self, VALUE other)
{
switch (TYPE(other)) {
case T_FIXNUM:
case T_BIGNUM:
break;
default:
rb_raise(rb_eArgError, "not an integer");
}
return f_lcm(self, other);
}
VALUE
rb_gcdlcm(VALUE self, VALUE other)
{
switch (TYPE(other)) {
case T_FIXNUM:
case T_BIGNUM:
break;
default:
rb_raise(rb_eArgError, "not an integer");
}
return rb_assoc_new(f_gcd(self, other), f_lcm(self, other));
}
VALUE
rb_rational_raw(VALUE x, VALUE y)
{
@ -1494,6 +1540,7 @@ Init_Rational(void)
assert(fprintf(stderr, "assert() is now active\n"));
id_Unify = rb_intern("Unify");
id_abs = rb_intern("abs");
id_cmp = rb_intern("<=>");
id_coerce = rb_intern("coerce");
id_convert = rb_intern("convert");
@ -1583,6 +1630,10 @@ Init_Rational(void)
/* --- */
rb_define_method(rb_cInteger, "gcd", rb_gcd, 1);
rb_define_method(rb_cInteger, "lcm", rb_lcm, 1);
rb_define_method(rb_cInteger, "gcdlcm", rb_gcdlcm, 1);
rb_define_method(rb_cNilClass, "to_r", nilclass_to_r, 0);
rb_define_method(rb_cInteger, "to_r", integer_to_r, 0);
rb_define_method(rb_cFloat, "to_r", float_to_r, 0);