problem with function declaration

[STp4izwU]

why in line 4 my compiler shows me this error "too few arguments to function `int add(int, int)???" here's my code:

#include <iostream>
using namespace std;

int add (int, int);


int main ()
{

cout << add ();
cin.get();

}

int add (int a=8, int b=9)
{
return (a+b);
}

[vlad from moscow]

The compiiler does not the degault arguments. Exchange the parameter lists in the declaration and the definition the following way

int add (int = 8, int = 9 );
...
...
int add (int a, int b)
{ 
   return (a+b);
}

[STp4izwU]

spasibaaa )))))