How do I generate a random float/decimal?

Any ideas?

Just an idea:

float f=rand()/100.0;

This works. I just wrote it now so it isn't the best, plus it is kinda expensive.

Code:

---

#include <iostream>
#include <cstdlib>
#include <math.h>
#include <time.h>

int main(void) {
        using namespace std;
        srand(time(NULL));
        float r;
        int i;
       
        for(;;) {
                i = rand();
                r = (i-sqrtf(i))/10000;
                cout << r << endl;
        }
               

        return 0;
}

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[edit]
stupid smilies...
[/edit]

Just make a random integer then devide it by another number.
Then you can store it in a float or double...