blob: 038c294c794f674f510e252a731d170a911087d9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Change for long double by Jakub Jelinek <jj@ultra.linux.cz>
* Public domain.
*/
#if defined(LIBM_SCCS) && !defined(lint)
static char rcsid[] = "$NetBSD: $";
#endif
/*
* isinfl(x) returns 1 if x is inf, -1 if x is -inf, else 0;
* no branching!
*/
#include "math.h"
#include "math_private.h"
int
__isinfl (long double x)
{
int64_t hx,lx;
GET_LDOUBLE_WORDS64(hx,lx,x);
lx |= (hx & 0x7fffffffffffffffLL) ^ 0x7fff000000000000LL;
lx |= -lx;
return ~(lx >> 63) & (hx >> 62);
}
weak_alias (__isinfl, isinfl)
|
