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Diffstat (limited to 'reference/C/EXAMPLES/rand.c')
-rw-r--r-- | reference/C/EXAMPLES/rand.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/reference/C/EXAMPLES/rand.c b/reference/C/EXAMPLES/rand.c new file mode 100644 index 0000000..2967c8a --- /dev/null +++ b/reference/C/EXAMPLES/rand.c @@ -0,0 +1,29 @@ +/********************************************************************* + * + * Purpose: Demonstrate the 'srand' and 'rand' functions + * Author: M.J. Leslie. + * Date: 11=Nov-94 + * + *********************************************************************/ + +#include <time.h> +#include <stdlib.h> + +main() +{ + int rolls=4; + /* This looks DISCUSTING! + * time returns a different value + * on every execution. And so + * changes the value passed to + * srand. See CAST + * for an explanation of + * (unsigned int) and (time_t) */ + srand((unsigned int)time((time_t *)NULL)); + + /* Roll the dice. */ + while(rolls--) + { + printf("Dice value is %d\n", (rand()%6)+1); + } +} |