Segmentation Fault error

[dalbir4444]

I was practicing with classes in C++, and I wrote this simple program:

#include <iostream>
using namespace std;

struct timer{int hour;};

class Time{
    private:
        timer* time;
    public:
        Time(){time->hour=0;}
};

int main (void)
{
    Time j,k;
}

I keep getting a segmentation fault. The debugger showed that after line 10, this=0x28ff18. I can't think of a reason why that is happening. Also, if in main I only declare Time j, then the program runs fine. Furthermore, if instead of using struct, I simply use int hour, the program runs fine. I don't understand why the struct is causing a problem?

[ne555]

Time(){time->hour=0;} You are dereferencing an uninitialized pointer (garbage)
why a pointer instead of an object?

[dalbir4444]

Thanks, I completely overlooked that. I was just experimenting to get a hang of classes.