StdLib/Include/Arm/machine/ieeefp.h

   1 /*  $NetBSD: ieeefp.h,v 1.3 2013/04/23 05:42:23 matt Exp $  */
   2 /** @file
   3 *
   4 *  Copyright (c) 2013 - 2014, ARM Limited. All rights reserved.
   5 *
   6 *  This program and the accompanying materials
   7 *  are licensed and made available under the terms and conditions of the BSD License
   8 *  which accompanies this distribution.  The full text of the license may be found at
   9 *  http://opensource.org/licenses/bsd-license.php
  10 *
  11 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13 *
  14 **/
  15 /*
  16  * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995
  17  * Public domain.
  18  */
  19
  20 #ifndef _ARM_IEEEFP_H_
  21 #define _ARM_IEEEFP_H_
  22
  23 #include <LibConfig.h>
  24 #include <sys/featuretest.h>
  25
  26 #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
  27
  28 //#include <arm/fenv.h>
  29 #include <machine/fenv.h>
  30
  31 #if !defined(_ISOC99_SOURCE)
  32
  33 /* Exception type (used by fpsetmask() et al.) */
  34
  35 typedef int fp_except;
  36
  37 /* Bit defines for fp_except */
  38
  39 #define FP_X_INV    FE_INVALID      /* invalid operation exception */
  40 #define FP_X_DZ     FE_DIVBYZERO    /* divide-by-zero exception */
  41 #define FP_X_OFL    FE_OVERFLOW     /* overflow exception */
  42 #define FP_X_UFL    FE_UNDERFLOW    /* underflow exception */
  43 #define FP_X_IMP    FE_INEXACT      /* imprecise (prec. loss; "inexact") */
  44
  45 /* Rounding modes */
  46
  47 typedef enum {
  48     FP_RN=FE_TONEAREST,     /* round to nearest representable number */
  49     FP_RP=FE_UPWARD,        /* round toward positive infinity */
  50     FP_RM=FE_DOWNWARD,      /* round toward negative infinity */
  51     FP_RZ=FE_TOWARDZERO     /* round to zero (truncate) */
  52 } fp_rnd;
  53
  54 #endif /* !_ISOC99_SOURCE */
  55
  56 #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */
  57
  58 #endif /* _ARM_IEEEFP_H_ */