newlib/libm/machine/mips/fenv.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  * $FreeBSD$
  29  */
  30
  31 #define __fenv_static
  32 #include <fenv.h>
  33 #ifndef __mips_soft_float
  34 #include <machine/fenv-fp.h>
  35 #endif
  36
  37
  38 #ifdef __GNUC_GNU_INLINE__
  39 #error "This file must be compiled with C99 'inline' semantics"
  40 #endif
  41
  42 /*
  43  * Hopefully the system ID byte is immutable, so it's valid to use
  44  * this as a default environment.
  45  */
  46
  47 #ifdef  __mips_soft_float
  48 #include <machine/fenv-softfloat.h>
  49 #endif
  50
  51 extern inline int feclearexcept(int excepts);
  52 extern inline int fegetexceptflag(fexcept_t *flagp, int excepts);
  53 extern inline int fesetexceptflag(const fexcept_t *flagp, int excepts);
  54 extern inline int feraiseexcept(int excepts);
  55 extern inline int fetestexcept(int excepts);
  56 extern inline int fegetround(void);
  57 extern inline int fesetround(int rounding_mode);
  58 extern inline int fegetenv(fenv_t *envp);
  59 extern inline int feholdexcept(fenv_t *envp);
  60 extern inline int fesetenv(const fenv_t *envp);
  61 extern inline int feupdateenv(const fenv_t *envp);
  62 extern inline int feenableexcept(int __mask);
  63 extern inline int fedisableexcept(int __mask);
  64 extern inline int fegetexcept(void);