2012-03-27 23:13:14 +00:00
|
|
|
/*
|
|
|
|
|
* Written by J.T. Conklin <jtc@netbsd.org>.
|
|
|
|
|
* Change for long double by Jakub Jelinek <jj@ultra.linux.cz>
|
|
|
|
|
* Public domain.
|
|
|
|
|
*/
|
|
|
|
|
|
2019-06-02 15:48:37 +00:00
|
|
|
#if defined(LIBM_SCCS) && !defined(lint)
|
|
|
|
|
static char rcsid[] = "$NetBSD: $";
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* isinfq(x) returns 1 if x is inf, -1 if x is -inf, else 0;
|
|
|
|
|
* no branching!
|
|
|
|
|
*/
|
|
|
|
|
|
2012-03-27 23:13:14 +00:00
|
|
|
#include "quadmath-imp.h"
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
isinfq (__float128 x)
|
|
|
|
|
{
|
2019-06-02 15:48:37 +00:00
|
|
|
int64_t hx,lx;
|
|
|
|
|
GET_FLT128_WORDS64(hx,lx,x);
|
|
|
|
|
lx |= (hx & 0x7fffffffffffffffLL) ^ 0x7fff000000000000LL;
|
|
|
|
|
lx |= -lx;
|
|
|
|
|
return ~(lx >> 63) & (hx >> 62);
|
2012-03-27 23:13:14 +00:00
|
|
|
}
|
