scint.h
00001 // This provides C99-like standard integer types. It is based on boost.org
00002 // code which has been modified for inclusion in the SC Toolkit.
00003
00004 // (C) Copyright boost.org 1999. Permission to copy, use, modify, sell
00005 // and distribute this software is granted provided this copyright
00006 // notice appears in all copies. This software is provided "as is" without
00007 // express or implied warranty, and with no claim as to its suitability for
00008 // any purpose.
00009
00010 #ifndef util_misc_scint_h
00011 #define util_misc_scint_h
00012
00013 #ifdef HAVE_STDINT_H
00014
00015 #include <stdint.h>
00016
00017 namespace sc {
00018
00019 typedef int8_t sc_int8_t;
00020 typedef int_least8_t sc_int_least8_t;
00021 typedef int_fast8_t sc_int_fast8_t;
00022 typedef uint8_t sc_uint8_t;
00023 typedef uint_least8_t sc_uint_least8_t;
00024 typedef uint_fast8_t sc_uint_fast8_t;
00025
00026 typedef int16_t sc_int16_t;
00027 typedef int_least16_t sc_int_least16_t;
00028 typedef int_fast16_t sc_int_fast16_t;
00029 typedef uint16_t sc_uint16_t;
00030 typedef uint_least16_t sc_uint_least16_t;
00031 typedef uint_fast16_t sc_uint_fast16_t;
00032
00033 typedef int32_t sc_int32_t;
00034 typedef int_least32_t sc_int_least32_t;
00035 typedef int_fast32_t sc_int_fast32_t;
00036 typedef uint32_t sc_uint32_t;
00037 typedef uint_least32_t sc_uint_least32_t;
00038 typedef uint_fast32_t sc_uint_fast32_t;
00039
00040 typedef intmax_t sc_intmax_t;
00041 typedef uintmax_t sc_uintmax_t;
00042 typedef int64_t sc_int64_t;
00043 typedef int_least64_t sc_int_least64_t;
00044 typedef int_fast64_t sc_int_fast64_t;
00045 typedef uint64_t sc_uint64_t;
00046 typedef uint_least64_t sc_uint_least64_t;
00047 typedef uint_fast64_t sc_uint_fast64_t;
00048
00049 }
00050
00051 #else
00052
00053 // This is not a complete implementation of the 1999 C Standard stdint.h
00054 // header; it doesn't supply various macros which are not advisable for use in
00055 // C++ programs.
00056
00057 #include <limits.h> // implementation artifact; not part of interface
00058
00059 namespace sc {
00060
00061 // These are fairly safe guesses for some 16-bit, and most 32-bit and 64-bit
00062 // platforms. For other systems, they will have to be hand tailored.
00063 // Because the fast types are assumed to be the same as the undecorated types,
00064 // it may be possible to hand tailor a more efficient implementation.
00065
00066 // 8-bit types -------------------------------------------------------------//
00067
00068 # if UCHAR_MAX == 0xff
00069 typedef signed char sc_int8_t;
00070 typedef signed char sc_int_least8_t;
00071 typedef signed char sc_int_fast8_t;
00072 typedef unsigned char sc_uint8_t;
00073 typedef unsigned char sc_uint_least8_t;
00074 typedef unsigned char sc_uint_fast8_t;
00075 # else
00076 # error defaults not correct; you must hand modify scint.h
00077 # endif
00078
00079 // 16-bit types ------------------------------------------------------------//
00080
00081 # if USHRT_MAX == 0xffff
00082 typedef short sc_int16_t;
00083 typedef short sc_int_least16_t;
00084 typedef short sc_int_fast16_t;
00085 typedef unsigned short sc_uint16_t;
00086 typedef unsigned short sc_uint_least16_t;
00087 typedef unsigned short sc_uint_fast16_t;
00088 # else
00089 # error defaults not correct; you must hand modify scint.h
00090 # endif
00091
00092 // 32-bit types ------------------------------------------------------------//
00093
00094 # if UINT_MAX == 0xffffffff
00095 typedef int sc_int32_t;
00096 typedef int sc_int_least32_t;
00097 typedef int sc_int_fast32_t;
00098 typedef unsigned int sc_uint32_t;
00099 typedef unsigned int sc_uint_least32_t;
00100 typedef unsigned int sc_uint_fast32_t;
00101 # elif ULONG_MAX == 0xffffffff
00102 typedef long sc_int32_t;
00103 typedef long sc_int_least32_t;
00104 typedef long sc_int_fast32_t;
00105 typedef unsigned long sc_uint32_t;
00106 typedef unsigned long sc_uint_least32_t;
00107 typedef unsigned long sc_uint_fast32_t;
00108 # else
00109 # error defaults not correct; you must hand modify scint.h
00110 # endif
00111
00112 // 64-bit types + intmax_t and uintmax_t -----------------------------------//
00113
00114 #if defined(ULONGLONG_MAX) && !defined(ULLONG_MAX)
00115 # define ULLONG_MAX ULONGLONG_MAX
00116 #endif
00117
00118 # ifdef ULLONG_MAX
00119 //# if ULLONG_MAX == 18446744073709551615 // 2**64 - 1
00120 # if ULONGLONG_MAX == (0xffffffffffffffffuLL) // uLL reqd for xlC
00121 typedef long long sc_intmax_t;
00122 typedef unsigned long long sc_uintmax_t;
00123 typedef long long sc_int64_t;
00124 typedef long long sc_int_least64_t;
00125 typedef long long sc_int_fast64_t;
00126 typedef unsigned long long sc_uint64_t;
00127 typedef unsigned long long sc_uint_least64_t;
00128 typedef unsigned long long sc_uint_fast64_t;
00129 # else
00130 # error defaults not correct; you must hand modify scint.h
00131 # endif
00132 # elif ULONG_MAX != 0xffffffff
00133
00134 # if ULONG_MAX == 18446744073709551615 // 2**64 - 1
00135 typedef long sc_intmax_t;
00136 typedef unsigned long sc_uintmax_t;
00137 typedef long sc_int64_t;
00138 typedef long sc_int_least64_t;
00139 typedef long sc_int_fast64_t;
00140 typedef unsigned long sc_uint64_t;
00141 typedef unsigned long sc_uint_least64_t;
00142 typedef unsigned long sc_uint_fast64_t;
00143 # else
00144 # error defaults not correct; you must hand modify scint.h
00145 # endif
00146 # else // assume no 64-bit integers
00147 # error 64 bit integer types are required
00148 typedef sc_int32_t sc_intmax_t;
00149 typedef sc_uint32_t sc_uintmax_t;
00150 # endif
00151
00152 }
00153
00154 #endif
00155
00156 #endif
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