ed25519/fixedint.h

   1 /*
   2     Portable header to provide the 32 and 64 bits type.
   3
   4     Not a compatible replacement for <stdint.h>, do not blindly use it as such.
   5 */
   6
   7 #if ((defined(__STDC__) && __STDC__ && __STDC_VERSION__ >= 199901L) || (defined(__WATCOMC__) && (defined(_STDINT_H_INCLUDED) || __WATCOMC__ >= 1250)) || (defined(__GNUC__) && (defined(_STDINT_H) || defined(_STDINT_H_) || defined(__UINT_FAST64_TYPE__)) )) && !defined(FIXEDINT_H_INCLUDED)
   8     #include <stdint.h>
   9     #define FIXEDINT_H_INCLUDED
  10
  11     #if defined(__WATCOMC__) && __WATCOMC__ >= 1250 && !defined(UINT64_C)
  12         #include <limits.h>
  13         #define UINT64_C(x) (x + (UINT64_MAX - UINT64_MAX))
  14     #endif
  15 #endif
  16
  17
  18 #ifndef FIXEDINT_H_INCLUDED
  19     #define FIXEDINT_H_INCLUDED
  20
  21     #include <limits.h>
  22
  23     /* (u)int32_t */
  24     #ifndef uint32_t
  25         #if (ULONG_MAX == 0xffffffffUL)
  26             typedef unsigned long uint32_t;
  27         #elif (UINT_MAX == 0xffffffffUL)
  28             typedef unsigned int uint32_t;
  29         #elif (USHRT_MAX == 0xffffffffUL)
  30             typedef unsigned short uint32_t;
  31         #endif
  32     #endif
  33
  34
  35     #ifndef int32_t
  36         #if (LONG_MAX == 0x7fffffffL)
  37             typedef signed long int32_t;
  38         #elif (INT_MAX == 0x7fffffffL)
  39             typedef signed int int32_t;
  40         #elif (SHRT_MAX == 0x7fffffffL)
  41             typedef signed short int32_t;
  42         #endif
  43     #endif
  44
  45
  46     /* (u)int64_t */
  47     #if (defined(__STDC__) && defined(__STDC_VERSION__) && __STDC__ && __STDC_VERSION__ >= 199901L)
  48         typedef long long int64_t;
  49         typedef unsigned long long uint64_t;
  50
  51         #define UINT64_C(v) v ##ULL
  52         #define INT64_C(v) v ##LL
  53     #elif defined(__GNUC__)
  54         __extension__ typedef long long int64_t;
  55         __extension__ typedef unsigned long long uint64_t;
  56
  57         #define UINT64_C(v) v ##ULL
  58         #define INT64_C(v) v ##LL
  59     #elif defined(__MWERKS__) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__APPLE_CC__) || defined(_LONG_LONG) || defined(_CRAYC)
  60         typedef long long int64_t;
  61         typedef unsigned long long uint64_t;
  62
  63         #define UINT64_C(v) v ##ULL
  64         #define INT64_C(v) v ##LL
  65     #elif (defined(__WATCOMC__) && defined(__WATCOM_INT64__)) || (defined(_MSC_VER) && _INTEGRAL_MAX_BITS >= 64) || (defined(__BORLANDC__) && __BORLANDC__ > 0x460) || defined(__alpha) || defined(__DECC)
  66         typedef __int64 int64_t;
  67         typedef unsigned __int64 uint64_t;
  68
  69         #define UINT64_C(v) v ##UI64
  70         #define INT64_C(v) v ##I64
  71     #endif
  72 #endif