1 /**

     2  *     $Id: data_types.c,v 1.1.1.1 2008-04-28 17:32:53 mbroeker Exp $

     3  * $Source: /development/c/demos/data_types.c,v $

     4  *

     5  */

     6 

     7 #include <stdio.h>

     8 #include <stdlib.h>

     9 #include <math.h>

    10 #include <limits.h>

    11 #include <float.h>

    12 

    13 typedef unsigned char UCHAR;

    14 typedef signed char SCHAR;

    15 

    16 typedef unsigned short USHORT;

    17 typedef signed short SSHORT;

    18 

    19 typedef unsigned int UINT;

    20 typedef signed int SINT;

    21 

    22 typedef unsigned long ULONG;

    23 typedef signed long SLONG;

    24 

    25 #ifdef __USE_ISOC99

    26 typedef unsigned long long ULLONG;

    27 typedef signed long long SLLONG;

    28 #endif

    29 

    30 int main (int argc, char **argv)

    31 {

    32     printf ("%20s %4s %20s %25s\n\n", "Type", "BITS", "MIN", "MAX");

    33 

    34     printf ("%20s %4d %20d %25d\n", "   signed char", 8 * sizeof (SCHAR), CHAR_MIN, CHAR_MAX);

    35     printf ("%20s %4d %20d %25d\n", "  signed short", 8 * sizeof (SSHORT), SHRT_MIN, SHRT_MAX);

    36     printf ("%20s %4d %20d %25d\n", "    signed int", 8 * sizeof (SINT), INT_MIN, INT_MAX);

    37     printf ("%20s %4d %20ld %25ld\n", "   signed long", 8 * sizeof (SLONG), LONG_MIN, LONG_MAX);

    38 

    39 #ifdef __USE_ISOC99

    40     printf ("%20s %4d %20lld %25lld\n\n", "  signed llong", 8 * sizeof (SLLONG), (SLLONG) LLONG_MIN, LLONG_MAX);

    41 #endif

    42 

    43     printf ("%20s %4d %20d %25u\n", " unsigned char", 8 * sizeof (UCHAR), 0, UCHAR_MAX);

    44     printf ("%20s %4d %20d %25u\n", "unsigned short", 8 * sizeof (USHORT), 0, USHRT_MAX);

    45 

    46     printf ("%20s %4d %20d %25u\n", "  unsigned int", 8 * sizeof (UINT), 0, UINT_MAX);

    47     printf ("%20s %4d %20lu %25lu\n", " unsigned long", 8 * sizeof (ULONG), 0UL, ULONG_MAX);

    48 

    49 #ifdef __USE_ISOC99

    50     printf ("%20s %4d %20llu %25llu\n", "unsigned llong", 8 * sizeof (ULLONG), 0ULL, ULLONG_MAX);

    51 #endif

    52 

    53 #ifdef __USE_ISOC99

    54     printf ("\n%20s %4d %20d  %20d\n", "_Bool", 8 * sizeof (_Bool), 0, 1);

    55 #endif

    56 

    57     printf ("\n%20s %4d \t\t %#1.2g \t\t %#1.2g\n", "float", 8 * sizeof (float), (double)FLT_MIN, (double)FLT_MAX);

    58     printf ("%20s %4d \t\t %#1.2g \t\t %#1.2g\n", "double", 8 * sizeof (double), (double)DBL_MIN, (double)DBL_MAX);

    59 

    60     return 0;

    61 }