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 _MACHINE_FENV_H_ 37 #define _MACHINE_FENV_H_ 38 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 typedef int fenv_t; 45 typedef int fexcept_t; 46 47 #if defined(__HAVE_68881__) 48 49 #define FE_INVALID 0x0080 50 #define FE_OVERFLOW 0x0040 51 #define FE_UNDERFLOW 0x0020 52 #define FE_DIVBYZERO 0x0010 53 #define FE_INEXACT 0x0008 54 55 #define FE_ALL_EXCEPT (FE_INVALID | FE_OVERFLOW | \ 56 FE_UNDERFLOW | FE_DIVBYZERO | FE_INEXACT) 57 58 #define FE_TONEAREST 0x0000 59 #define FE_TOWARDZERO 0x0001 60 #define FE_DOWNWARD 0x0002 61 #define FE_UPWARD 0x0003 62 63 #else 64 #define FE_TONEAREST 0x0000 65 #endif 66 67 #if !defined(__declare_fenv_inline) && defined(__declare_extern_inline) 68 #define __declare_fenv_inline(type) __declare_extern_inline(type) 69 #endif 70 71 #ifdef __declare_fenv_inline 72 #if defined(__HAVE_68881__) 73 #include <machine/fenv-fp.h> 74 #else 75 #include <machine/fenv-softfloat.h> 76 #endif 77 #endif 78 79 #ifdef __cplusplus 80 } 81 #endif 82 83 #endif /* _MACHINE_FENV_H_ */ 84
