/*  testCircleC.cpp
    C-style "object" implementation.
    
    Bruce M. Bolden                     May 4, 1998
 */

#include <iostream>

using namespace std;

struct circle             //  Circle definition
{
   double radius;
};
typedef struct circle Circle;

void SetRadius( Circle& c, double r );
void ShowRadius( Circle c );

int main()
{
    Circle c1;

    c1.radius = 2.0;
    ShowRadius( c1 );
    SetRadius( c1, 3.2 );
    ShowRadius( c1 );

    return 0;
}

void SetRadius( Circle& c, double r )
{
    c.radius = r;
}

void ShowRadius( Circle c )
{
    cout << c.radius << endl;
}