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rb_rational_cmp: do not goto into a branch

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I'm not necessarily against every goto in general, but jumping into a
branch is definitely a bad idea.  Better refactor.
This commit is contained in:
卜部昌平 2020-06-16 14:42:24 +09:00
parent 9c5804ac1c
commit d7eec15f8e
Notes: git 2020-06-29 11:06:52 +09:00 
Merged: https://github.com/ruby/ruby/pull/3247
1 changed files with 11 additions and 10 deletions
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21
rational.c
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@ -1085,21 +1085,19 @@ rb_rational_pow(VALUE self, VALUE other)
VALUE
rb_rational_cmp(VALUE self, VALUE other)
{
if (RB_INTEGER_TYPE_P(other)) {
switch (TYPE(other)) {
case T_FIXNUM:
case T_BIGNUM:
{
get_dat1(self);
if (dat->den == LONG2FIX(1))
return rb_int_cmp(dat->num, other); /* c14n */
other = f_rational_new_bang1(CLASS_OF(self), other);
goto other_is_rational;
/* FALLTHROUGH */
}
}
else if (RB_FLOAT_TYPE_P(other)) {
return rb_dbl_cmp(nurat_to_double(self), RFLOAT_VALUE(other));
}
else if (RB_TYPE_P(other, T_RATIONAL)) {
other_is_rational:
case T_RATIONAL:
{
VALUE num1, num2;
@ -1116,8 +1114,11 @@ rb_rational_cmp(VALUE self, VALUE other)
}
return rb_int_cmp(rb_int_minus(num1, num2), ZERO);
}
}
else {
case T_FLOAT:
return rb_dbl_cmp(nurat_to_double(self), RFLOAT_VALUE(other));
default:
return rb_num_coerce_cmp(self, other, rb_intern("<=>"));
}
}