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rational.c: optimization and refactoring

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* rational.c (nurat_s_new_bang, nurat_canonicalize): small optimization
  by using rb_int_uminus instead of f_negate.

* rational.c (nurat_canonicalize): add assertions for parameters.

* rational.c (f_negate, id_negate): removed.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56828 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mrkn 2016-11-18 15:04:36 +00:00
parent a94b625ff2
commit 608c44e0e3
1 changed files with 7 additions and 7 deletions
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14
rational.c
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@ -32,7 +32,7 @@
VALUE rb_cRational;
static ID id_abs, id_idiv, id_integer_p, id_negate, id_to_i,
static ID id_abs, id_idiv, id_integer_p, id_to_i,
id_i_num, id_i_den;
#define f_boolcast(x) ((x) ? Qtrue : Qfalse)
@ -137,7 +137,6 @@ f_abs(VALUE x)
}
fun1(integer_p)
fun1(negate)
inline static VALUE
f_to_i(VALUE x)
@ -415,8 +414,8 @@ nurat_s_new_bang(int argc, VALUE *argv, VALUE klass)
den = f_to_i(den);
if (INT_NEGATIVE_P(den)) {
num = f_negate(num);
den = f_negate(den);
num = rb_int_uminus(num);
den = rb_int_uminus(den);
}
else if (INT_ZERO_P(den)) {
rb_num_zerodiv();
@ -469,9 +468,11 @@ nurat_int_value(VALUE num)
static void
nurat_canonicalize(VALUE *num, VALUE *den)
{
assert(num != NULL && RB_INTEGER_TYPE_P(*num));
assert(den != NULL && RB_INTEGER_TYPE_P(*den));
if (INT_NEGATIVE_P(*den)) {
*num = f_negate(*num);
*den = f_negate(*den);
*num = rb_int_uminus(*num);
*den = rb_int_uminus(*den);
}
else if (INT_ZERO_P(*den)) {
rb_num_zerodiv();
@ -2615,7 +2616,6 @@ Init_Rational(void)
id_abs = rb_intern("abs");
id_idiv = rb_intern("div");
id_integer_p = rb_intern("integer?");
id_negate = rb_intern("-@");
id_to_i = rb_intern("to_i");
id_i_num = rb_intern("@numerator");
id_i_den = rb_intern("@denominator");