1 /*- 2 * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #define __fenv_static 30 #include "fenv.h" 31 32 #ifdef __GNUC_GNU_INLINE__ 33 #error "This file must be compiled with C99 'inline' semantics" 34 #endif 35 36 /* 37 * Hopefully the system ID byte is immutable, so it's valid to use 38 * this as a default environment. 39 */ 40 const fenv_t __fe_dfl_env = 0; 41 42 #ifdef SOFTFLOAT 43 #define __set_env(env, flags, mask, rnd) env = ((flags) | (rnd) << 5) 44 #define __env_flags(env) ((env) & FE_ALL_EXCEPT) 45 #define __env_mask(env) (0) /* No exception traps. */ 46 #define __env_round(env) (((env) >> 5) & _ROUND_MASK) 47 #include "fenv-softfloat.h" 48 #endif 49 50 extern inline int feclearexcept(int __excepts); 51 extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts); 52 extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts); 53 extern inline int feraiseexcept(int __excepts); 54 extern inline int fetestexcept(int __excepts); 55 extern inline int fegetround(void); 56 extern inline int fesetround(int __round); 57 extern inline int fegetenv(fenv_t *__envp); 58 extern inline int feholdexcept(fenv_t *__envp); 59 extern inline int fesetenv(const fenv_t *__envp); 60 extern inline int feupdateenv(const fenv_t *__envp); 61 extern inline int feenableexcept(int __mask); 62 extern inline int fedisableexcept(int __mask); 63 extern inline int fegetexcept(void); 64