My code has no mistakes(I think) but it still doesn't work as it should!

[hekri]

I'm a beginner so maybe I'm asking a dumb question but i can't sort it out so if you could help me a little it would be nice. Thanks in advance.

I was writing a program code but when i debug it (am using Visual Studio 2010 professional by the way) it doesn't print what i am expecting, only some random numbers come out( hexadecimal I guess) and there's no error message just those numbers .

#include <iostream>
using namespace std;

int a,b;
int sum(int a, int b);

int main ()
{
	cout<<"Enter the firs number: " <<endl;
	cin >>a;
	cout<<"Enter the second number: "<<endl;
	cin>>b;
	cout<<"\n ";
	cout<< sum<<endl;

	return 0;

}


int sum(int a, int b)
{
	return a + b;
}

This is not the actual code that i was writing but this code prints also the same thing.
So if you could have a look at it and tell me am i making some kind of mistake or is this Visual Studios fault?.
Thanks.

[Lynx876]

Line 14, did you mean:
cout << sum( a, b ) << endl;?

Also, line 4. That doesn't need to be there. You declare the variables in main() and pass them to sum().
Actually, you don't declare them in main(). My bad.

[Peter87]

You probably want to call the sum function on line 14:
cout<< sum(a, b) <<endl;

[hekri]

Thank you very much @Lynx876 and @ Peter87 .I didn't expect an answer so fast. It worked.
Like I said I'm a beginner and probably asking a dumb question :( . Thanks again.

[andywestken]

Actually, you don't declare them in main().

But it would be better if a and b were declared in main.

Andy

PS And your orig code would have been printing out the memory address of the function sum()

[hekri]

@ andywestken. Thank you, like it seems I really can learn something here and I'll remember in such cases " it's better to declare variables in main". Thanks.