Main Page Class Hierarchy Compound List File List Compound Members Related Pages

# 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