rand real number

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>

double drand(void) {
	double ret = (double)rand() / ((double)rand() + 0.1);
	return ret - floor(ret);
}

int main(void){
	int i = 5;

	srand(time(NULL));
	while ( i-- ){
		int n=rand()% 200-100;
		float numb=n+drand();
		printf("%f\n", numb);

	}
	system("pause");
	return 0;
}