newlib/libc/include/fenv.h

   1 /* Copyright (c) 2017  SiFive Inc. All rights reserved.
   2
   3    This copyrighted material is made available to anyone wishing to use,
   4    modify, copy, or redistribute it subject to the terms and conditions
   5    of the FreeBSD License.   This program is distributed in the hope that
   6    it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
   7    including the implied warranties of MERCHANTABILITY or FITNESS FOR
   8    A PARTICULAR PURPOSE.  A copy of this license is available at
   9    http://www.opensource.org/licenses.
  10 */
  11
  12 #ifndef _FENV_H
  13 #define _FENV_H
  14
  15 #include <sys/fenv.h>
  16
  17 #ifdef __cplusplus
  18 extern "C" {
  19 #endif
  20
  21 /* Exception */
  22 int feclearexcept(int excepts);
  23 int fegetexceptflag(fexcept_t *flagp, int excepts);
  24 int feraiseexcept(int excepts);
  25 int fesetexceptflag(const fexcept_t *flagp, int excepts);
  26 int fetestexcept(int excepts);
  27
  28 /* Rounding mode */
  29 int fegetround(void);
  30 int fesetround(int rounding_mode);
  31
  32 /* Float environment */
  33 int fegetenv(fenv_t *envp);
  34 int feholdexcept(fenv_t *envp);
  35 int fesetenv(const fenv_t *envp);
  36 int feupdateenv(const fenv_t *envp);
  37
  38 #ifdef __cplusplus
  39 }
  40 #endif
  41
  42 #endif