Undefined var still prints

[Burhan salman]

how can this code work?
how can it print num1 in main function when num1 has not been defined as a var by me???

  #include <cstdlib>
#include <iostream>

using namespace std;

int num1()
{
    int var1 = 4;
    cout<< 4 << endl;
    return 0;
}
int main(int argc, char *argv[])
{
    num1();
    cout<<num1;
    system("PAUSE");
    return 0;
}

[mutexe]

you're printing out the location in memory of your function num1().

[tipaye]

Yes, indeed num1 was defined by you.

num1 was defined by you in line 6.

In line 15 num1 is the address of the function you defined in line 6

http://stackoverflow.com/questions/840501/how-do-function-pointers-in-c-work