Question

I am having trouble getting rand() to work in C++. rand() normally gives me a very large number. When I try to use the modulo operator (%) to give it a range, it always returns 0, no matter what.

Seeding the random number generator at the beginning of the program doesn’t help either.

Answer 1

The following code works just fine for me (emitting a random number between 0 included and 1000 excluded each time it’s run):

#include <cstdlib>
#include <ctime>
#include <iostream>

int main()
{
    std::srand(time(0));
    std::cout<<(std::rand() % 1000)<<std::endl;
    return 0;
}