sysdeps/microblaze/bits/fenv.h

   1 /* Copyright (C) 2011-2016 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library.  If not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _FENV_H
  19 # error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
  20 #endif
  21
  22 /* MicroBlaze supports only round-to-nearest.  The software
  23    floating-point support also acts this way.  */
  24 enum
  25   {
  26     __FE_UNDEFINED = 0,
  27
  28     FE_TONEAREST =
  29 #define FE_TONEAREST    0x1
  30     FE_TONEAREST,
  31   };
  32
  33 #define FE_ALL_EXCEPT 0
  34
  35 /* Type representing exception flags (if there were any).  */
  36 typedef unsigned int fexcept_t;
  37
  38 /* Type representing floating-point environment.  */
  39 typedef unsigned int fenv_t;
  40
  41 /* If the default argument is used we use this value.  */
  42 #define FE_DFL_ENV      ((const fenv_t *) -1l)
  43
  44 #if __GLIBC_USE (IEC_60559_BFP_EXT)
  45 /* Type representing floating-point control modes.  */
  46 typedef unsigned int femode_t;
  47
  48 /* Default floating-point control modes.  */
  49 # define FE_DFL_MODE    ((const femode_t *) -1L)
  50 #endif