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1 /** |
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2 * $Id: data_types.c,v 1.1.1.1 2008-04-28 17:32:53 mbroeker Exp $ |
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3 * $Source: /development/c/demos/data_types.c,v $ |
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4 * |
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5 */ |
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6 |
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7 #include <stdio.h> |
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8 #include <stdlib.h> |
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9 #include <math.h> |
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10 #include <limits.h> |
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11 #include <float.h> |
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12 |
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13 typedef unsigned char UCHAR; |
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14 typedef signed char SCHAR; |
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15 |
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16 typedef unsigned short USHORT; |
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17 typedef signed short SSHORT; |
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18 |
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19 typedef unsigned int UINT; |
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20 typedef signed int SINT; |
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21 |
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22 typedef unsigned long ULONG; |
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23 typedef signed long SLONG; |
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24 |
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25 #ifdef __USE_ISOC99 |
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26 typedef unsigned long long ULLONG; |
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27 typedef signed long long SLLONG; |
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28 #endif |
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29 |
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30 int main (int argc, char **argv) |
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31 { |
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32 printf ("%20s %4s %20s %25s\n\n", "Type", "BITS", "MIN", "MAX"); |
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33 |
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34 printf ("%20s %4d %20d %25d\n", " signed char", 8 * sizeof (SCHAR), CHAR_MIN, CHAR_MAX); |
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35 printf ("%20s %4d %20d %25d\n", " signed short", 8 * sizeof (SSHORT), SHRT_MIN, SHRT_MAX); |
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36 printf ("%20s %4d %20d %25d\n", " signed int", 8 * sizeof (SINT), INT_MIN, INT_MAX); |
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37 printf ("%20s %4d %20ld %25ld\n", " signed long", 8 * sizeof (SLONG), LONG_MIN, LONG_MAX); |
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38 |
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39 #ifdef __USE_ISOC99 |
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40 printf ("%20s %4d %20lld %25lld\n\n", " signed llong", 8 * sizeof (SLLONG), (SLLONG) LLONG_MIN, LLONG_MAX); |
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41 #endif |
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42 |
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43 printf ("%20s %4d %20d %25u\n", " unsigned char", 8 * sizeof (UCHAR), 0, UCHAR_MAX); |
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44 printf ("%20s %4d %20d %25u\n", "unsigned short", 8 * sizeof (USHORT), 0, USHRT_MAX); |
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45 |
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46 printf ("%20s %4d %20d %25u\n", " unsigned int", 8 * sizeof (UINT), 0, UINT_MAX); |
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47 printf ("%20s %4d %20lu %25lu\n", " unsigned long", 8 * sizeof (ULONG), 0UL, ULONG_MAX); |
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48 |
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49 #ifdef __USE_ISOC99 |
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50 printf ("%20s %4d %20llu %25llu\n", "unsigned llong", 8 * sizeof (ULLONG), 0ULL, ULLONG_MAX); |
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51 #endif |
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52 |
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53 #ifdef __USE_ISOC99 |
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54 printf ("\n%20s %4d %20d %20d\n", "_Bool", 8 * sizeof (_Bool), 0, 1); |
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55 #endif |
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56 |
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57 printf ("\n%20s %4d \t\t %#1.2g \t\t %#1.2g\n", "float", 8 * sizeof (float), (double)FLT_MIN, (double)FLT_MAX); |
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58 printf ("%20s %4d \t\t %#1.2g \t\t %#1.2g\n", "double", 8 * sizeof (double), (double)DBL_MIN, (double)DBL_MAX); |
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59 |
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60 return 0; |
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61 } |