milieu.h revision 1.4
1/* $NetBSD: milieu.h,v 1.4 2018/04/19 21:50:09 christos Exp $ */ 2 3/* This is a derivative work. */ 4 5/*- 6 * Copyright (c) 2001 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Ross Harvey. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34/* 35=============================================================================== 36 37This C header file is part of TestFloat, Release 2a, a package of programs 38for testing the correctness of floating-point arithmetic complying to the 39IEC/IEEE Standard for Floating-Point. 40 41Written by John R. Hauser. More information is available through the Web 42page `http://HTTP.CS.Berkeley.EDU/~jhauser/arithmetic/TestFloat.html'. 43 44THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort 45has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT 46TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO 47PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY 48AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. 49 50Derivative works are acceptable, even for commercial purposes, so long as 51(1) they include prominent notice that the work is derivative, and (2) they 52include prominent notice akin to these four paragraphs for those parts of 53this code that are retained. 54 55=============================================================================== 56*/ 57 58#ifndef MILIEU_H 59#define MILIEU_H 60 61#if !defined(_KERNEL) && !defined(_STANDALONE) 62#include <inttypes.h> 63#else 64#include <sys/inttypes.h> 65#endif 66 67#include <sys/endian.h> 68 69/* 70------------------------------------------------------------------------------- 71One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined. 72------------------------------------------------------------------------------- 73*/ 74 75#if _BYTE_ORDER == _LITTLE_ENDIAN 76#define LITTLEENDIAN 77#else 78#define BIGENDIAN 79#endif 80 81#define BITS64 82 83/* 84------------------------------------------------------------------------------- 85Each of the following `typedef's defines the most convenient type that holds 86integers of at least as many bits as specified. For example, `uint8' should 87be the most convenient type that can hold unsigned integers of as many as 888 bits. The `flag' type must be able to hold either a 0 or 1. For most 89implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed 90to the same as `int'. 91------------------------------------------------------------------------------- 92*/ 93typedef int flag; 94typedef unsigned int uint8; 95typedef signed int int8; 96typedef unsigned int uint16; 97typedef int int16; 98typedef unsigned int uint32; 99typedef signed int int32; 100#ifdef BITS64 101typedef uint64_t uint64; 102typedef int64_t int64; 103#endif 104 105/* 106------------------------------------------------------------------------------- 107Each of the following `typedef's defines a type that holds integers 108of _exactly_ the number of bits specified. For instance, for most 109implementation of C, `bits16' and `sbits16' should be `typedef'ed to 110`unsigned short int' and `signed short int' (or `short int'), respectively. 111------------------------------------------------------------------------------- 112*/ 113typedef uint8_t bits8; 114typedef int8_t sbits8; 115typedef uint16_t bits16; 116typedef int16_t sbits16; 117typedef uint32_t bits32; 118typedef int32_t sbits32; 119#ifdef BITS64 120typedef uint64_t bits64; 121typedef int64_t sbits64; 122#endif 123 124#ifdef BITS64 125/* 126------------------------------------------------------------------------------- 127The `LIT64' macro takes as its argument a textual integer literal and 128if necessary ``marks'' the literal as having a 64-bit integer type. 129For example, the GNU C Compiler (`gcc') requires that 64-bit literals be 130appended with the letters `LL' standing for `long long', which is `gcc's 131name for the 64-bit integer type. Some compilers may allow `LIT64' to be 132defined as the identity macro: `#define LIT64( a ) a'. 133------------------------------------------------------------------------------- 134*/ 135#define LIT64( a ) a##LL 136#endif 137 138/* 139------------------------------------------------------------------------------- 140The macro `INLINE' can be used before functions that should be inlined. If 141a compiler does not support explicit inlining, this macro should be defined 142to be `static'. 143------------------------------------------------------------------------------- 144*/ 145#define INLINE static __inline 146 147#endif 148