1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2004 David Schultz <[email protected]> 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 34 #ifdef __GNUC_GNU_INLINE__ 35 #error "This file must be compiled with C99 'inline' semantics" 36 #endif 37 38 /* 39 * Hopefully the system ID byte is immutable, so it's valid to use 40 * this as a default environment. 41 */ 42 const fenv_t __fe_dfl_env = 0; 43 44 #ifdef __mips_soft_float 45 #define __set_env(env, flags, mask, rnd) env = ((flags) \ 46 | (mask)<<_FPUSW_SHIFT \ 47 | (rnd) << 24) 48 #define __env_flags(env) ((env) & FE_ALL_EXCEPT) 49 #define __env_mask(env) (((env) >> _FPUSW_SHIFT) \ 50 & FE_ALL_EXCEPT) 51 #define __env_round(env) (((env) >> 24) & _ROUND_MASK) 52 #include "fenv-softfloat.h" 53 #endif 54 55 extern inline int feclearexcept(int __excepts); 56 extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts); 57 extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts); 58 extern inline int feraiseexcept(int __excepts); 59 extern inline int fetestexcept(int __excepts); 60 extern inline int fegetround(void); 61 extern inline int fesetround(int __round); 62 extern inline int fegetenv(fenv_t *__envp); 63 extern inline int feholdexcept(fenv_t *__envp); 64 extern inline int fesetenv(const fenv_t *__envp); 65 extern inline int feupdateenv(const fenv_t *__envp); 66 extern inline int feenableexcept(int __mask); 67 extern inline int fedisableexcept(int __mask); 68 extern inline int fegetexcept(void); 69