1 /* 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright © 2023 Keith Packard 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 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above 14 * copyright notice, this list of conditions and the following 15 * disclaimer in the documentation and/or other materials provided 16 * with the distribution. 17 * 18 * 3. Neither the name of the copyright holder nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 26 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 33 * OF THE POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #ifndef _SYS_FENV_H_ 37 #define _SYS_FENV_H_ 38 39 #include <sys/cdefs.h> 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 typedef int fenv_t; 46 typedef int fexcept_t; 47 48 #if defined(__HAVE_68881__) 49 50 #define FE_INVALID 0x0080 51 #define FE_OVERFLOW 0x0040 52 #define FE_UNDERFLOW 0x0020 53 #define FE_DIVBYZERO 0x0010 54 #define FE_INEXACT 0x0008 55 56 #define FE_ALL_EXCEPT (FE_INVALID | FE_OVERFLOW | \ 57 FE_UNDERFLOW | FE_DIVBYZERO | FE_INEXACT) 58 59 #define FE_TONEAREST 0x0000 60 #define FE_TOWARDZERO 0x0001 61 #define FE_DOWNWARD 0x0002 62 #define FE_UPWARD 0x0003 63 64 #endif 65 66 #if !defined(__declare_fenv_inline) && defined(__declare_extern_inline) 67 #define __declare_fenv_inline(type) __declare_extern_inline(type) 68 #endif 69 70 #ifdef __declare_fenv_inline 71 #if defined(__HAVE_68881__) 72 #include <machine/fenv-fp.h> 73 #else 74 #include <machine/fenv-softfloat.h> 75 #endif 76 #endif 77 78 #ifdef __cplusplus 79 } 80 #endif 81 82 #endif /* _SYS_FENV_H_ */ 83
