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 #if defined(__SOFTFP__) || (__ARM_FP & 0x8) == 0 45 #define PICOLIBC_DOUBLE_NOROUND 46 #define PICOLIBC_DOUBLE_NOEXCEPT 47 #define PICOLIBC_LONG_DOUBLE_NOEXCEPT 48 #endif 49 50 #if defined(__SOFTFP__) || (__ARM_FP & 0x4) == 0 51 #define PICOLIBC_FLOAT_NOROUND 52 #define PICOLIBC_FLOAT_NOEXCEPT 53 #endif 54 55 #ifndef __SOFTFP__ 56 57 /* Exception flags */ 58 #define FE_INVALID 0x0001 59 #define FE_DIVBYZERO 0x0002 60 #define FE_OVERFLOW 0x0004 61 #define FE_UNDERFLOW 0x0008 62 #define FE_INEXACT 0x0010 63 #define FE_DENORMAL 0x0080 64 #define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \ 65 FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW | FE_DENORMAL) 66 67 /* Rounding modes */ 68 #define FE_TONEAREST 0x00000000 69 #define FE_UPWARD 0x00400000 70 #define FE_DOWNWARD 0x00800000 71 #define FE_TOWARDZERO 0x00c00000 72 73 #endif 74 75 #ifdef __cplusplus 76 } 77 #endif 78 79 #endif /* _SYS_FENV_H_ */ 80
