utility_static_constructor.cpp

Static constructor pattern example

 
#include "utility/static_constructor.h"
 
#include <iostream>
 
class MyClass
{
public:
    MyClass() { std::cout << "MyClass::MyClass() - MyClass::value = " << value << std::endl; }
    ~MyClass() { std::cout << "MyClass::~MyClass() - MyClass::value = " << value << std::endl; }
 
    void Test() { std::cout << "MyClass::Test() - MyClass::value = " << value << std::endl; }
 
private:
    static int value;
 
    static void StaticConstructor()
    {
        CppCommon::StaticConstructor<&MyClass::StaticConstructor, &MyClass::StaticDestructor>::instance();
 
        value = 123;
        std::cout << "MyClass::StaticConstructor() - MyClass::value = " << value << std::endl;
    }
 
    static void StaticDestructor()
    {
        value = 0;
        std::cout << "MyClass::StaticDestructor() - MyClass::value = " << value << std::endl;
    }
};
 
int MyClass::value = 0;
 
int main(int argc, char** argv)
{
    MyClass instance;
    instance.Test();
    return 0;
}