src/osdep/types.h

   1 #ifndef EL__OSDEP_TYPES_H
   2 #define EL__OSDEP_TYPES_H
   3
   4 #ifdef HAVE_CONFIG_H
   5 #include "config.h"
   6 #endif
   7
   8 #ifdef HAVE_SYS_TYPES_H
   9 #include <sys/types.h>
  10 #endif
  11
  12 #ifdef HAVE_LIMITS_H
  13 #include <limits.h>
  14 #endif
  15
  16 #ifdef HAVE_STDINT_H
  17 #include <stdint.h>
  18 #endif
  19
  20 #ifdef HAVE_INTTYPES_H
  21 #include <inttypes.h>
  22 #endif
  23
  24 #ifndef SHRT_MAX
  25 #define SHRT_MAX 0x7fff
  26 #endif
  27
  28 #ifndef USHRT_MAX
  29 #define USHRT_MAX 0xffff
  30 #endif
  31
  32 #ifndef INT_MAX
  33 #ifdef MAXINT
  34 #define INT_MAX MAXINT
  35 #else
  36 #define INT_MAX 0x7fffffff
  37 #endif
  38 #endif
  39
  40 #ifndef UINT_MAX
  41 #ifdef MAXUINT
  42 #define UINT_MAX MAXUINT
  43 #else
  44 #define UINT_MAX 0xffffffff
  45 #endif
  46 #endif
  47
  48 #ifndef LONG_MAX
  49 #ifdef MAXLONG
  50 #define LONG_MAX MAXLONG
  51 #else
  52 #define LONG_MAX 0x7fffffff
  53 #endif
  54 #endif
  55
  56 #if defined(HAVE_LONG_LONG) && !defined(LLONG_MAX)
  57 #ifdef MAXLLONG
  58 #define LLONG_MAX MAXLLONG
  59 #elif SIZEOF_LONG_LONG == 8
  60 #define LLONG_MAX 9223372036854775807LL
  61 #elif SIZEOF_LONG_LONG == 4
  62 #define LLONG_MAX LONG_MAX
  63 #endif
  64 #endif
  65
  66 #ifndef OFFT_MAX
  67 #if defined(HAVE_LONG_LONG) && SIZEOF_OFF_T == SIZEOF_LONG_LONG
  68 #define OFFT_MAX LLONG_MAX
  69 #elif SIZEOF_OFF_T == SIZEOF_LONG
  70 #define OFFT_MAX LONG_MAX
  71 #elif SIZEOF_OFF_T == SIZEOF_INT
  72 #define OFFT_MAX INT_MAX
  73 #elif SIZEOF_OFF_T == SIZEOF_SHORT
  74 #define OFFT_MAX SHRT_MAX
  75 #endif
  76 #endif
  77
  78 #ifndef HAVE_UINT16_T
  79 #if SIZEOF_CHAR == 2
  80 typedef unsigned char uint16_t;
  81 #elif SIZEOF_SHORT == 2
  82 typedef unsigned short uint16_t;
  83 #elif SIZEOF_INT == 2
  84 typedef unsigned int uint16_t;
  85 #elif SIZEOF_LONG == 2
  86 typedef unsigned long uint16_t;
  87 #elif defined(HAVE_LONG_LONG) && SIZEOF_LONG_LONG == 2
  88 typedef unsigned long long uint16_t;
  89 #else
  90 #error You have no 16-bit integer type. Get in touch with reality.
  91 #endif
  92 #endif
  93
  94 #ifndef HAVE_INT32_T
  95 #if SIZEOF_CHAR == 4
  96 typedef char int32_t;
  97 #elif SIZEOF_SHORT == 4
  98 typedef short int32_t;
  99 #elif SIZEOF_INT == 4
 100 typedef int int32_t;
 101 #elif SIZEOF_LONG == 4
 102 typedef long int32_t;
 103 #elif defined(HAVE_LONG_LONG) && SIZEOF_LONG_LONG == 4
 104 typedef long long int32_t;
 105 #else
 106 #error You have no 32-bit integer type. Get in touch with reality.
 107 #endif
 108 #endif
 109
 110 #ifndef HAVE_UINT32_T
 111 #if SIZEOF_CHAR == 4
 112 typedef unsigned char uint32_t;
 113 #elif SIZEOF_SHORT == 4
 114 typedef unsigned short uint32_t;
 115 #elif SIZEOF_INT == 4
 116 typedef unsigned int uint32_t;
 117 #elif SIZEOF_LONG == 4
 118 typedef unsigned long uint32_t;
 119 #elif defined(HAVE_LONG_LONG) && SIZEOF_LONG_LONG == 4
 120 typedef unsigned long long uint32_t;
 121 #else
 122 #error You have no 32-bit integer type. Get in touch with reality.
 123 #endif
 124 #endif
 125
 126 #ifdef HAVE_LONG_LONG
 127 #define longlong long long
 128 #else
 129 #define longlong long
 130 #endif
 131
 132 /* These are mostly for shutting up sparse warnings. */
 133 #ifndef __INT_MAX__
 134 #define __INT_MAX__ 0x7fffffff
 135 #endif
 136 #ifndef __LONG_MAX__
 137 #define __LONG_MAX__ 0x7fffffff
 138 #endif
 139 #ifndef __SHRT_MAX__
 140 #define __SHRT_MAX__ 0x7fff
 141 #endif
 142
 143 /*
 144  * long l; (long) (longptr_T) l == l
 145  * void *p; (void *) (longptr_T) p == p
 146  */
 147 typedef long longptr_T;
 148
 149 /* To print off_t offset, ELinks does:
 150  *
 151  * printf("%" OFF_PRINT_FORMAT, (off_print_T) offset);
 152  *
 153  * The cast is necessary because it is not possible to guess
 154  * a printf format for off_t itself based on what we have here.
 155  * The off_t type might be either long or long long, and the format
 156  * string must match even if both types have the same representation,
 157  * because GCC warns about mismatches and --enable-debug adds -Werror
 158  * to $CFLAGS.  */
 159 #if !HAVE_OFF_T || SIZEOF_OFF_T <= SIZEOF_LONG
 160 typedef long off_print_T;
 161 # define OFF_PRINT_FORMAT "ld"
 162 #elif HAVE_LONG_LONG && SIZEOF_OFF_T <= SIZEOF_LONG_LONG
 163 typedef long long off_print_T;
 164 # define OFF_PRINT_FORMAT "lld"
 165 #else
 166 # error "cannot figure out how to print off_t values"
 167 #endif
 168
 169 #endif