newlib/libm/machine/aarch64/fenv.c

   1 /*-
   2  * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
   3  * Copyright (c) 2013 Andrew Turner <andrew@FreeBSD.ORG>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * $FreeBSD$
  28  */
  29
  30 #define __fenv_static
  31 #include <fenv.h>
  32 #include <machine/fenv-fp.h>
  33
  34 /*
  35  * Hopefully the system ID byte is immutable, so it's valid to use
  36  * this as a default environment.
  37  */
  38
  39
  40 #ifdef __GNUC_GNU_INLINE__
  41 #error "This file must be compiled with C99 'inline' semantics"
  42 #endif
  43
  44 extern inline int feclearexcept(int __excepts);
  45 extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts);
  46 extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
  47 extern inline int feraiseexcept(int __excepts);
  48 extern inline int fetestexcept(int __excepts);
  49 extern inline int fegetround(void);
  50 extern inline int fesetround(int __round);
  51 extern inline int fegetenv(fenv_t *__envp);
  52 extern inline int feholdexcept(fenv_t *__envp);
  53 extern inline int fesetenv(const fenv_t *__envp);
  54 extern inline int feupdateenv(const fenv_t *__envp);
  55 extern inline int feenableexcept(int __mask);
  56 extern inline int fedisableexcept(int __mask);
  57 extern inline int fegetexcept(void);