StdLib/Include/Arm/machine/ieeefp.h

/*  $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_ */