1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG> 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 #ifndef _SYS_FENV_H_ 32 #define _SYS_FENV_H_ 1 33 34 #include <sys/_types.h> 35 #include <sys/cdefs.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 typedef int fenv_t; 42 typedef int fexcept_t; 43 44 #ifdef __SH_FPU_ANY__ 45 46 #ifdef __SH2E__ 47 #define PICOLIBC_LONG_DOUBLE_NOROUND 48 #define PICOLIBC_LONG_DOUBLE_NOEXCEPT 49 #if __SIZEOF_DOUBLE__ > 4 50 #define PICOLIBC_DOUBLE_NOROUND 51 #define PICOLIBC_DOUBLE_NOEXCEPT 52 #endif 53 #endif 54 55 #ifdef __SH4_SINGLE_ONLY__ 56 #define PICOLIBC_LONG_DOUBLE_NOROUND 57 #define PICOLIBC_LONG_DOUBLE_NOEXCEPT 58 #endif 59 60 /* Exception flags */ 61 #define FE_INVALID 0x0040 62 #define FE_DIVBYZERO 0x0020 63 #if defined(__SH2E__) 64 #define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INVALID) 65 #else 66 #define FE_OVERFLOW 0x0010 67 #define FE_UNDERFLOW 0x0008 68 #define FE_INEXACT 0x0004 69 #define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \ 70 FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW) 71 #endif 72 73 /* Rounding modes */ 74 #define FE_TONEAREST 0x0000 75 #define FE_TOWARDZERO 0x0001 76 77 #endif 78 79 #if !defined(__declare_fenv_inline) && defined(__declare_extern_inline) 80 #define __declare_fenv_inline(type) __declare_extern_inline(type) 81 #endif 82 83 #ifdef __declare_fenv_inline 84 #ifdef __SH_FPU_ANY__ 85 #include <machine/fenv-fp.h> 86 #else 87 #include <machine/fenv-softfloat.h> 88 #endif 89 #endif 90 91 #ifdef __cplusplus 92 } 93 #endif 94 95 #endif /* _SYS_FENV_H_ */ 96
