Const Objects

Constant objects are objects that can only call constant functions from a class.

Here is one example:

#include <iostream>

using namespace std;

class Sally
{
    public:
    void printCrap(); //Prototyping the function.
    void printCrap2() const; //Prototyping the constant function.

};

int main()
{
    Sally sallyobject; //Creating an object.
    sallyobject.printCrap(); //Calling a function from the class "Sally"

    const Sally constsallyobject; //Creating a const object.
    constsallyobject.printCrap2(); //Calling a const function.

    return 0;
}

void Sally::printCrap() //Creating a function to the class "Sally"
{
    cout << "I am a function!" << endl;
}

void Sally::printCrap2() const //Creating a const function.
{
    cout << "I am a constant function!" << endl;
}