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/* $NetBSD: fenv.h,v 1.2 2014/01/29 00:22:09 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_FENV_H_
#define _ARM_FENV_H_
#ifdef __ARM_PCS_AAPCS64
/* AArch64 split FPSCR into two registers FPCR and FPSR */
typedef struct {
unsigned int __fpcr;
unsigned int __fpsr;
} fenv_t;
#else
typedef int fenv_t; /* FPSCR */
#endif
typedef int fexcept_t;
#define FE_INVALID 0x01 /* invalid operation exception */
#define FE_DIVBYZERO 0x02 /* divide-by-zero exception */
#define FE_OVERFLOW 0x04 /* overflow exception */
#define FE_UNDERFLOW 0x08 /* underflow exception */
#define FE_INEXACT 0x10 /* imprecise (loss of precision; "inexact") */
#define FE_ALL_EXCEPT 0x1f
#define FE_TONEAREST 0 /* round to nearest representable number */
#define FE_UPWARD 1 /* round toward positive infinity */
#define FE_DOWNWARD 2 /* round toward negative infinity */
#define FE_TOWARDZERO 3 /* round to zero (truncate) */
__BEGIN_DECLS
/* Default floating-point environment */
extern const fenv_t __fe_dfl_env;
#define FE_DFL_ENV (&__fe_dfl_env)
__END_DECLS
#endif /* _ARM_FENV_H_ */
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