| 1 | /* ------------------------------------------------------------------ */
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| 2 | /** @file initial.h
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| 3 | @short Indentification of the system and including some basic include file.
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| 4 |
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| 5 | @author Konrad Bernloehr
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| 6 | @date 1991 to 2000
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| 7 | @date $Date: 2002-07-25 17:53:46 $
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| 8 | @version $Revision: 1.1 $
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| 9 |
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| 10 | This file identifies a range of supported operating systems
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| 11 | and processor types. As a result, some preprocessor definitions
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| 12 | are made. A basic set of system include files (which may vary
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| 13 | from one system to another) are included.
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| 14 | In addition, compatibility between different systems is improved,
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| 15 | for example between K&R compiler systems and ANSI C compilers
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| 16 | of various flavours.
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| 17 |
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| 18 | @verbatim
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| 19 | Identification of the host operating system (not CPU):
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| 20 |
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| 21 | Supported identifiers are
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| 22 | OS_MSDOS
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| 23 | OS_VAXVMS
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| 24 | OS_UNIX
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| 25 | + variant identifiers like
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| 26 | OS_ULTRIX, OS_LYNX, OS_LINUX, OS_DECUNIX, OS_AIX, OS_HPUX
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| 27 | Note: ULTRIX may be on VAX or MIPS, LINUX on Intel or Alpha,
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| 28 | OS_LYNX on 68K or PowerPC.
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| 29 | OS_OS9
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| 30 |
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| 31 | You might first reset all identifiers here.
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| 32 |
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| 33 | Then set one or more identifiers according to the system.
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| 34 |
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| 35 | Identification of the CPU architecture:
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| 36 |
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| 37 | Supported CPU identifiers are
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| 38 | CPU_I86
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| 39 | CPU_VAX
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| 40 | CPU_MIPS
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| 41 | CPU_ALPHA
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| 42 | CPU_68K
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| 43 | CPU_RS6000
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| 44 | CPU_PowerPC
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| 45 | CPU_HPPA
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| 46 | @endverbatim
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| 47 | */
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| 48 |
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| 49 | /* ------------------------------------------------------------------ */
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| 50 |
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| 51 | #ifdef __cplusplus
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| 52 | extern "C" {
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| 53 | #endif
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| 54 |
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| 55 | #ifndef INITIAL_H__LOADED
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| 56 |
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| 57 | #define INITIAL_H__LOADED 1
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| 58 |
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| 59 | #ifndef NO_IEEE_FLOAT_FORMAT
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| 60 | #define IEEE_FLOAT_FORMAT 1
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| 61 | #endif
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| 62 |
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| 63 | #if ( defined(MSDOS) || defined(__MSDOS__) ) /* MS C or Turbo C */
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| 64 | # define OS_MSDOS 1
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| 65 | # define CPU_I86 1
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| 66 | #elif ( defined(vax) && defined(vms) ) /* VAX/VMS (what about OpenVMS?) */
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| 67 | # define OS_VAXVMS 1
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| 68 | # define VAX_FLOAT_FORMAT 1
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| 69 | # undef IEEE_FLOAT_FORMAT
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| 70 | # define CPU_VAX 1
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| 71 | #elif ( defined(linux) || defined(__linux__) ) /* Linux OS */
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| 72 | # define OS_UNIX 1
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| 73 | # define OS_LINUX 1
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| 74 | # if ( defined(i386) || defined(__i386) ) /* Linux on Intel-like CPU */
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| 75 | # define CPU_I86 1
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| 76 | # elif ( defined(__alpha) ) /* Linux on Alpha */
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| 77 | # define CPU_ALPHA 1
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| 78 | # endif
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| 79 | #elif ( defined(ultrix) ) /* Ultrix (MIPS or VAX) */
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| 80 | # define OS_UNIX 1
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| 81 | # define OS_ULTRIX 1
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| 82 | # ifndef ULTRIX
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| 83 | # define ULTRIX 1
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| 84 | # endif
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| 85 | # ifndef vax
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| 86 | # define CPU_MIPS 1
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| 87 | # else
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| 88 | # define VAX_FLOAT_FORMAT 1
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| 89 | # undef IEEE_FLOAT_FORMAT
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| 90 | # define CPU_VAX 1
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| 91 | # endif
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| 92 | #elif ( defined(lynx) || defined(__lynx__) ) /* Lynx-OS */
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| 93 | # define OS_UNIX 1
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| 94 | # define OS_LYNX 1
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| 95 | # if ( defined(_ARCH_PPC) || defined(__powerpc__) ) /* Lynx-OS on PowerPC */
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| 96 | # define CPU_PowerPC 1
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| 97 | # elif ( defined(M68K) ) /* Lynx-OS on Motorola 68K */
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| 98 | # define CPU_68K 1
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| 99 | # endif
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| 100 | #elif ( defined(AIX) ) /* IBM RS/6000 or PowerPC under AIX */
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| 101 | # define OS_UNIX 1
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| 102 | # define OS_AIX 1
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| 103 | # define CPU_RS6000 1
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| 104 | # define CPU_PowerPC 1
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| 105 | #elif ( defined(__osf__) && defined(__alpha) ) /* DEC Unix */
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| 106 | # define OS_UNIX 1
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| 107 | # define OS_DECUNIX 1
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| 108 | # define CPU_ALPHA 1
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| 109 | # define SIXTY_FOUR_BITS 1
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| 110 | #elif ( defined(OSK) ) /* OS-9 68k */
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| 111 | # define OS_OS9 1
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| 112 | # define CPU_68K 1
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| 113 | # define FSTAT_NOT_AVAILABLE 1
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| 114 | #elif ( defined(M68K) ) /* seems to be LynxOS on a 68k */
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| 115 | # define OS_UNIX 1
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| 116 | # define OS_LYNX 1
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| 117 | # define CPU_68K 1
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| 118 | #elif ( defined(__hpux) ) /* HP-UX */
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| 119 | # define OS_HPUX 1
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| 120 | # define OS_UNIX 1
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| 121 | # ifdef __hppa
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| 122 | # define CPU_HPPA 1
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| 123 | # endif
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| 124 | #else
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| 125 | # if defined(unix) || defined(__unix)
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| 126 | # define OS_UNIX 1 /* UNIX variant and CPU type are unknown */
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| 127 | # endif
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| 128 | #endif
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| 129 |
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| 130 | /* On UNIX the version of files extracted from SCCS are available for 'what' */
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| 131 | #ifdef OS_UNIX
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| 132 | # ifndef lint
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| 133 | # define USING_SCCS 1
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| 134 | # define USING_SCCS_ID 1
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| 135 | # endif
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| 136 | #endif
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| 137 |
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| 138 | /* The identifier 'ANSI_C' tells that a compiler supporting ANSI C is used */
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| 139 | #if defined(__STDC__) /* Usually means 'ANSI C and nothing more than ANSI C' */
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| 140 | # ifndef ANSI_C
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| 141 | # define ANSI_C 1
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| 142 | # endif
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| 143 | #endif
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| 144 |
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| 145 | /* On the following systems all known C compilers (should) support ANSI C: */
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| 146 | #if ( defined(OS_MSDOS) || defined(OS_VAXVMS) || defined(OS_UNIX) )
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| 147 | # ifndef ANSI_C
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| 148 | # define ANSI_C 1
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| 149 | # endif
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| 150 | #endif
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| 151 |
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| 152 | /* To test the code the 'ANSI_C' identifier may be reset */
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| 153 | #ifdef SIMPLE_C
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| 154 | # ifdef ANSI_C
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| 155 | # undef ANSI_C
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| 156 | # endif
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| 157 | #endif
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| 158 |
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| 159 | /* Which types of systems have a VME bus? */
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| 160 | #if ( defined(OS_OS9) || defined(OS_LYNX) )
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| 161 | # define VME_BUS 1
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| 162 | #endif
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| 163 |
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| 164 | /* -------------------------------------------------- */
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| 165 |
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| 166 | #ifndef NO_INITIAL_INCLUDES
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| 167 |
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| 168 | /* Include standard OS-dependent include files */
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| 169 | #if ( defined(OS_OS9) || defined(BSD) )
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| 170 | # include <strings.h>
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| 171 | #else
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| 172 | # include <string.h>
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| 173 | #endif
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| 174 |
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| 175 | #include <stdio.h>
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| 176 | #include <math.h>
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| 177 | #ifndef M_PI
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| 178 | # define M_PI 3.14159265358979323846
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| 179 | #endif
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| 180 | #include <time.h>
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| 181 | #if defined(ANSI_C) || defined(__STDC__)
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| 182 | # include <stdlib.h>
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| 183 | #endif
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| 184 | #ifdef OS_UNIX
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| 185 | # include <unistd.h>
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| 186 | #endif
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| 187 | #ifdef OS_MSDOS
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| 188 | # include <io.h>
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| 189 | #endif
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| 190 | #endif
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| 191 | /* ^-- end of '#ifndef NO_INITIAL_INCLUDES' */
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| 192 |
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| 193 | /* -------------------------------------------------- */
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| 194 |
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| 195 | #if ANSI_C
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| 196 | # define ARGLIST(a) a
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| 197 | #else
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| 198 | # define ARGLIST(a) ()
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| 199 | #endif
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| 200 |
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| 201 | /* -------------------------------------------------- */
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| 202 |
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| 203 | #ifndef NO_INITIAL_MACROS
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| 204 |
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| 205 | #ifndef ANSI_C
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| 206 | # ifndef NULL
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| 207 | # define NULL (void *) 0
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| 208 | # endif
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| 209 | # ifdef OS_OS9
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| 210 | typedef unsigned size_t;
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| 211 | # endif
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| 212 | # define ARGLIST(a) ()
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| 213 | #endif
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| 214 |
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| 215 | /* Definitions normally found in include files: */
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| 216 | /* OS-9 include files don't define SEEK_CUR */
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| 217 | #ifndef SEEK_CUR
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| 218 | # define SEEK_CUR 1
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| 219 | #endif
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| 220 | /* OS-9 does not provide a isatty() function */
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| 221 | #ifdef OS_OS9
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| 222 | # define ISATTY_NOT_AVAILABLE 1
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| 223 | # define strchr(arg1,arg2) index(arg1,arg2)
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| 224 | char *getenv ARGLIST((char *));
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| 225 | #endif
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| 226 | #ifdef OS_LYNX
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| 227 | # define memmove(a,b,n) bcopy(b,a,n)
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| 228 | void bcopy ARGLIST((char *b, char *a, int n));
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| 229 | # define tsleep(t) usleep(10000*t)
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| 230 | #endif
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| 231 |
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| 232 | /* fopen() options needed for portability to MS-DOS */
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| 233 | #ifdef OS_MSDOS
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| 234 | # define WRITE_TEXT "wt"
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| 235 | # define WRITE_BINARY "wb"
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| 236 | # define READ_TEXT "rt"
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| 237 | # define READ_BINARY "rb"
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| 238 | # define APPEND_TEXT "at"
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| 239 | # define APPEND_BINARY "ab"
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| 240 | #else
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| 241 | # define WRITE_TEXT "w"
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| 242 | # define WRITE_BINARY "w"
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| 243 | # define READ_TEXT "r"
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| 244 | # define READ_BINARY "r"
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| 245 | # define APPEND_TEXT "a"
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| 246 | # define APPEND_BINARY "a"
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| 247 | #endif
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| 248 |
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| 249 | #ifndef __cplusplus
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| 250 |
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| 251 | /* Nearest integer macro */
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| 252 | #define Nint(a) (((a)>=0.)?((long)(a+0.5)):((long)(a-0.5)))
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| 253 | /* Absolute value independent of data type */
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| 254 | #define Abs(a) (((a)>=0)?(a):(-1*(a)))
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| 255 | #define Min(a,b) ((a)<(b)?(a):(b))
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| 256 | #define Max(a,b) ((a)>(b)?(a):(b))
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| 257 | #ifdef CRT
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| 258 | /* Old names for the above macros as used in CRT code */
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| 259 | # define NINT(a) Nint(a)
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| 260 | # define ABS(a) Abs(a)
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| 261 | #endif
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| 262 | /* Minimum and maximum macros (same definition as in X11) */
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| 263 | #ifndef min
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| 264 | # define min(a,b) ((a)<(b)?(a):(b))
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| 265 | #endif
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| 266 | #ifndef max
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| 267 | # define max(a,b) ((a)>(b)?(a):(b))
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| 268 | #endif
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| 269 |
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| 270 | #define REGISTER register
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| 271 | #endif
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| 272 | /* ^-- end of '#ifndef __cplusplus' */
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| 273 | #endif
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| 274 | /* ^-- end of '#ifndef NO_INITIAL_MACROS' */
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| 275 |
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| 276 | /* -------------------------------------------------- */
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| 277 |
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| 278 | #define CONST_QUAL
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| 279 |
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| 280 | /* =========== Integer data types ============ */
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| 281 |
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| 282 | #ifdef __STDC__
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| 283 | #ifdef __STDC_VERSION__
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| 284 | #if ( __STDC_VERSION__ >= 199901L )
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| 285 | #define ANSI_C_99 1
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| 286 | #undef CONST_QUAL
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| 287 | #define CONST_QUAL const /* Qualifier for constant data */
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| 288 | #endif
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| 289 | #endif
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| 290 | #endif
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| 291 |
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| 292 | #if defined(ANSI_C) || defined(__STDC__)
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| 293 | # include <sys/types.h>
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| 294 | #endif
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| 295 |
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| 296 | #if defined(ANSI_C_99) || defined(__int8_t_defined)
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| 297 | /* ANSI C99 (C9x) has the following types specified in stdint.h */
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| 298 | /* Fairly recent gcc implementations have them as well (in sys/types.h) */
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| 299 | /* but stdint.h is provided as well and duplication does no harm. */
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| 300 | # include <stdint.h>
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| 301 | /* Older (2.7.x) gcc versions have some of them defined in */
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| 302 | /* <sys/bitypes.h> (which is included from <sys/types.h>) and the rest */
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| 303 | /* is slightly different but we have no stdint.h. */
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| 304 | #elif defined(__BIT_TYPES_DEFINED__)
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| 305 | typedef u_int8_t uint8_t;
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| 306 | typedef u_int16_t uint16_t;
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| 307 | typedef u_int32_t uint32_t;
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| 308 | # else
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| 309 | /* Only for the older compilers we have to declare all the types here. */
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| 310 | # if !defined(__GNUC__) && !defined(OS_UNIX)
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| 311 | typedef /*signed*/ char int8_t;
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| 312 | #else
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| 313 | typedef signed char int8_t;
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| 314 | #endif
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| 315 | typedef unsigned char uint8_t;
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| 316 |
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| 317 | typedef short int16_t;
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| 318 | typedef unsigned short uint16_t;
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| 319 |
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| 320 | # ifdef OS_MSDOS
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| 321 | typedef long int32_t;
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| 322 | typedef unsigned long uint32_t;
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| 323 | # else
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| 324 | typedef int int32_t;
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| 325 | typedef unsigned int uint32_t;
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| 326 | # endif
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| 327 | # if defined(SIXTY_FOUR_BITS)
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| 328 | typedef long int64_t;
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| 329 | typedef unsigned long uint64_t;
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| 330 | # endif
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| 331 | #endif
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| 332 |
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| 333 | /* This should do it for most other 64 bit systems than DEC Unix */
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| 334 | #ifndef SIXTY_FOUR_BITS
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| 335 | # ifdef __WORDSIZE
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| 336 | # if __WORDSIZE == 64
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| 337 | # define SIXTY_FOUR_BITS 1
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| 338 | # endif
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| 339 | # endif
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| 340 | #endif
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| 341 |
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| 342 | /* Many 32 bit systems have long long int as 64 bit integer */
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| 343 | #if defined(SIXTY_FOUR_BITS) || ( defined(INT64_MAX) && defined(__GNUC__) )
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| 344 | # define HAVE_64BIT_INT 1
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| 345 | #endif
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| 346 |
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| 347 | #ifdef __cplusplus
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| 348 | }
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| 349 | #endif
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| 350 |
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| 351 | #endif
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