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/*
* =====================================================================================
*
* Filename: 5.00.ReihenfolgeUndWirkungVonMethoden.cc
*
* Description: Implements a class for testing methods
*
* Version: 1.0
* Created: 12.05.2014 09:47:57
* Revision: none
* Compiler: gcc
*
* Author: Stefan Suhren (SSuhren), suhren.stefan@fh-swf.de
* Organization: FH Südwestfalen, Iserlohn
*
* =====================================================================================
*/
#include <cstdlib>
#include <iostream>
#include <iomanip>
using namespace std;
// =====================================================================================
// Class: Class
// Description: Simple Class for testing methods
// =====================================================================================
class Class{
public:
// ==================== LIFECYCLE =======================================
Class ( int _value = 0, string name = "" ); // constructor
Class ( const Class &other ); // copy constructor
~Class (); // destructor
// ==================== ACCESSORS =======================================
void print();
// ==================== MUTATORS =======================================
Class& set_name ( string _name );
Class& set_value( int _value);
// ==================== OPERATORS =======================================
Class& operator = ( const Class &other ); // assignment operator
Class operator + ( const Class &other ); // addition
private:
// ==================== DATA MEMBERS =======================================
int value;
string name;
}; // ----- end of class Class -----
Class f ( Class arg ); // Prototyp function f
Class g ( Class *arg ); // Prototyp function g
// === FUNCTION ======================================================================
// Name: main
// Description:
// =====================================================================================
int main ( int argc, char *argv[] ){
cout << "Class x1(11, \"x1\");\n";
Class x1(11, "x1");
cout << "\nClass x2 = x1;\n";
Class x2 = x1;
cout << "\nClass x3(33, \"x3\");\n";
Class x3(33, "x3");
cout << "\nx2.set_name(\"x2\");\n";
x2.set_name("x2");
cout << "\nx2 = x3;\n";
x2 = x3;
cout << "\nx2 = x1 + 11;\n";
x2 = x1 + 11;
cout << "\nx2 = x1 + x3;\n";
x2 = x1 + x3;
cout << "\nx3 = f( x2 );\n";
x3 = f( x2 );
cout << "\nx3 = x1 + f( x2 );\n";
x3 = x1 + f( x2 );
cout << "\nx3 = x1 + g( &x2 );\n";
x3 = x1 + g( &x2 );
cout << "\nx3 = 234;\n";
x3 = 234;
cout << "\nx3.set_value(234);\n";
x3.set_value(333);
cout << "\nEOF\n";
return EXIT_SUCCESS;
} // ---------- end of function main ----------
// === FUNCTION ======================================================================
// Name: f
// Description: Function for returning Class arg
// =====================================================================================
Class f ( Class arg ){
return arg;
} // ----- end of function f -----
// === FUNCTION ======================================================================
// Name: g
// Description: Function for returning Class *arg
// =====================================================================================
Class g ( Class *arg ){
return *arg;
} // ----- end of function g -----
//--------------------------------------------------------------------------------------
// Class: Class
// Method: Class
// Description: constructor
//--------------------------------------------------------------------------------------
Class::Class ( int _value, string _name){
// Print a few stats for testing
cout << " ==== constructor ( this = " << this << " )\n";
// Assign values
value = _value;
name = _name;
} // ----- end of method Class::Class (constructor) -----
//--------------------------------------------------------------------------------------
// Class: Class
// Method: Class
// Description: copy constructor
//--------------------------------------------------------------------------------------
Class::Class ( const Class &other ){
// Print a few stats for testing
cout << " ==== copy constructor ( this = " << this << ", other = " << &other << " )\n";
value = other.value;
} // ----- end of method Class::Class (copy constructor) -----
//--------------------------------------------------------------------------------------
// Class: Class
// Method: ~Class
// Description: destructor
//--------------------------------------------------------------------------------------
Class::~Class (){
// Print a few stats for testing
cout << " ==== destructor ( this = " << this << " )\n";
} // ----- end of method Class::~Class (destructor) -----
//--------------------------------------------------------------------------------------
// Class: Class
// Method: print
// Description: Prints value and object name
//--------------------------------------------------------------------------------------
void Class::print (){
// Print a few stats for testing
cout << " ==== print ( this = " << this << " )\n";
cout << name << ": " << value << "\n";
} // ----- end of method Class::print -----
//--------------------------------------------------------------------------------------
// Class: Class
// Method: set_name
//--------------------------------------------------------------------------------------
Class& Class::set_name ( string _name ){
// Print a few stats for testing
cout << " ==== set_name ( this = " << this << " )\n";
name = _name;
return *this;
} // ----- end of method Class::set_name -----
//--------------------------------------------------------------------------------------
// Class: Class
// Method: set_value
//--------------------------------------------------------------------------------------
Class& Class::set_value ( int _value ){
// Print a few stats for testing
cout << " ==== set_value ( this = " << this << " )\n";
value = _value;
return *this;
}
//--------------------------------------------------------------------------------------
// Class: Class
// Method: operator =
// Description: assignment operator
//--------------------------------------------------------------------------------------
Class& Class::operator = ( const Class &other ){
// Print a few stats for testing
cout << " ==== operator= ( this = " << this << ", other = " << &other << " )\n";
if ( this != &other ) {
value = other.value;
}
return *this;
} // ----- end of method Class::operator = (assignment operator) -----
//--------------------------------------------------------------------------------------
// Class: Class
// Method: operator +
// Description: addition operator
//--------------------------------------------------------------------------------------
Class Class::operator + ( const Class &other ){
// Print a few stats for testing
cout << " ==== operator+ ( this = " << this << ", other = " << &other << " )\n";
return Class(value + other.value);
}
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