/* * Written by J.T. Conklin <jtc@netbsd.org>. * Change for long double by Ulrich Drepper <drepper@cygnus.com>. * 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) { int32_t se,hx,lx; GET_LDOUBLE_WORDS(se,hx,lx,x); lx |= (hx & 0x7fffffff) | ((se & 0x7fff) ^ 0x7fff); lx |= -lx; se &= 0x8000; return ~(lx >> 31) & (1 - (se >> 14)); } hidden_def (__isinfl) weak_alias (__isinfl, isinfl)