#include <iostream.h>

#ifdef TEST_1
double
hat(int a = 1, double c = 4.0, double e, int d)
{
    return a * c * e * d;
}
#endif

int foo(char x, char y = 'a') { cout << "foo 1" << endl; return 0; }
void foo(int x) { cout << "foo 2" << endl; }
// ambiguous with with foo(int)
// double foo(int x) { cout << "foo 3" << endl; return 0.0; }
int foo(char x) { cout << "foo 4" << endl; return 0; }

int main(void) {
#ifdef TEST_1
    cout << hat(2, 3.0, 5) << endl; // What gets called?
#endif

    foo('a', 'b');

    // illegal: ambiguous call
    // double x = foo(foo('b'));

    double y = foo(foo('b', 'b'));

    return 0;
}