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Extract always_finite_type_p and handle flonum cases

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This commit is contained in:
Nobuyoshi Nakada 2021-09-02 21:42:47 +09:00
parent 682f58a933
commit a95262356e
Notes: git 2021-09-02 23:11:54 +09:00 
Merged: https://github.com/ruby/ruby/pull/4801
1 changed files with 12 additions and 4 deletions
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16
complex.c
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@ -334,15 +334,23 @@ f_zero_p(VALUE x)
#define f_nonzero_p(x) (!f_zero_p(x))
static inline bool
always_finite_type_p(VALUE x)
{
if (FIXNUM_P(x)) return true;
if (FLONUM_P(x)) return true; /* Infinity can't be a flonum */
return (RB_INTEGER_TYPE_P(x) || RB_TYPE_P(x, T_RATIONAL));
}
VALUE rb_flo_is_finite_p(VALUE num);
inline static int
f_finite_p(VALUE x)
{
if (RB_INTEGER_TYPE_P(x) || RB_TYPE_P(x, T_RATIONAL)) {
if (always_finite_type_p(x)) {
return TRUE;
}
else if (RB_FLOAT_TYPE_P(x)) {
return (int)rb_flo_is_finite_p(x);
return isfinite(RFLOAT_VALUE(x));
}
return RTEST(rb_funcallv(x, id_finite_p, 0, 0));
}
@ -351,11 +359,11 @@ VALUE rb_flo_is_infinite_p(VALUE num);
inline static int
f_infinite_p(VALUE x)
{
if (RB_INTEGER_TYPE_P(x) || RB_TYPE_P(x, T_RATIONAL)) {
if (always_finite_type_p(x)) {
return FALSE;
}
else if (RB_FLOAT_TYPE_P(x)) {
return RTEST(rb_flo_is_infinite_p(x));
return isinf(RFLOAT_VALUE(x));
}
return RTEST(rb_funcallv(x, id_infinite_p, 0, 0));
}