Please explain this:

Question

#include <iostream>
using namespace std;

int main()
{
cout<<main;
getchar();
return 0;
}

Answer 1

I believe 1 is the compilers default false value.

ref: http://www.cplusplus.com/forum/beginner/147175/

Answer 2

Sure,

When you start a C++ code, int main is false by default ( any value that is not 0 - the 1 ).

Why, because the compiler need to know if the code finishes or not.

getchar() - takes a character like 'a' for input ( C like function inputs do not work well in the C++ playground)

return 0; - main becomes true the compiler knows that the code is done

Answer 3

Manual and why it's output is 1?