audk/StdLib/Include/Arm/machine/ieeefp.h

59 lines
1.8 KiB
C

/* $NetBSD: ieeefp.h,v 1.3 2013/04/23 05:42:23 matt Exp $ */
/** @file
*
* Copyright (c) 2013 - 2014, ARM Limited. All rights reserved.
*
* This program and the accompanying materials
* are licensed and made available under the terms and conditions of the BSD License
* which accompanies this distribution. The full text of the license may be found at
* http://opensource.org/licenses/bsd-license.php
*
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
*
**/
/*
* Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995
* Public domain.
*/
#ifndef _ARM_IEEEFP_H_
#define _ARM_IEEEFP_H_
#include <LibConfig.h>
#include <sys/featuretest.h>
#if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
//#include <arm/fenv.h>
#include <machine/fenv.h>
#if !defined(_ISOC99_SOURCE)
/* Exception type (used by fpsetmask() et al.) */
typedef int fp_except;
/* Bit defines for fp_except */
#define FP_X_INV FE_INVALID /* invalid operation exception */
#define FP_X_DZ FE_DIVBYZERO /* divide-by-zero exception */
#define FP_X_OFL FE_OVERFLOW /* overflow exception */
#define FP_X_UFL FE_UNDERFLOW /* underflow exception */
#define FP_X_IMP FE_INEXACT /* imprecise (prec. loss; "inexact") */
/* Rounding modes */
typedef enum {
FP_RN=FE_TONEAREST, /* round to nearest representable number */
FP_RP=FE_UPWARD, /* round toward positive infinity */
FP_RM=FE_DOWNWARD, /* round toward negative infinity */
FP_RZ=FE_TOWARDZERO /* round to zero (truncate) */
} fp_rnd;
#endif /* !_ISOC99_SOURCE */
#endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */
#endif /* _ARM_IEEEFP_H_ */