C++ OOP patterns

some examples in C++ More...

Classes
struct	Setter_interface< ValueType >
struct	Getter_interface< ValueType >
struct	Change_interface< ValueType >
class	Synchronised_encapsulated_value< ValueType >
	encapsulating class with only public accessor and mutator intrfaces More...

Functions
void	oop_demo ()

Detailed Description

some examples in C++

Four Pillars of Object-oriented_programming:

• Abstraction
• Encapsulation
• Inheritance
• Polymorphism

object-oriented-programming-in-cpp

class

derived_class

abstract_class

shared_lock

Three independent interfaces Setter_interface, Getter_interface and Change_interface demonstrate Interface segregation

Function Documentation

oop_demo()

void oop_demo

(

)

Lambda expression 'client' demonstrates Dependency inversion - it doesn't depends from implementation Synchronised_encapsulated_value but depends only from interfaces.

Definition at line 115 of file patterns.cpp.

{
    auto client = [] (Setter_interface<int>& s, Getter_interface<int>& g) {
        s.set(1);
        assert(g.get() == 1);
    };
    Synchronised_encapsulated_value<int> v;
    Setter_interface<int>& s = v;
    Getter_interface<int>& g = v;
    client(s, g);
 
    auto client2 = [] (Setter_interface<string>& s, Getter_interface<string>& g) {
        s.set("abc");
        assert(g.get() == "abc");
    };
    Synchronised_encapsulated_value<string> v2;
    Setter_interface<string>& s2(v2);
    Getter_interface<string>& g2(v2);
    Change_interface<string>& c2(v2);
    client2(s2, g2);
    c2.change("de");
    assert(g2.get() == "abcde");
}

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