random.c

C.Game.Programming.For.Dummies原码

#include <stdio.h>
#include <stdlib.h>
#include <time.h>		//for seeding randomizer

int rnd(int range);
void seedrnd(void);

void main()
{
	int x;
	seedrnd();
				//display 100 random numbers
	for(x=0;x<100;x++)
		printf("%i\t%i\n",rnd(11),random(11));
}

int rnd(int range)
{
	int r;

	r=rand()%range;		//spit up random num.
	return(r);
}

void seedrnd(void)
{
	srand((unsigned)time(NULL));
}