4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* @(#)w_acos.c 5.1 93/09/24 */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ====================================================
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Developed at SunPro, a Sun Microsystems, Inc. business.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Permission to use, copy, modify, and distribute this
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * software is freely granted, provided that this notice
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * is preserved.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ====================================================
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <LibConfig.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <sys/EfiCdefs.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if defined(LIBM_SCCS) && !defined(lint)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync__RCSID("$NetBSD: w_acos.c,v 1.9 2002/05/26 22:01:59 wiz Exp $");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * wrap_acos(x)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include "math.h"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include "math_private.h"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncdouble
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncacos(double x) /* wrapper acos */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#ifdef _IEEE_LIBM
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return __ieee754_acos(x);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#else
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync double z;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync z = __ieee754_acos(x);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if(fabs(x)>1.0) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return __kernel_standard(x,x,1); /* acos(|x|>1) */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync } else
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return z;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}