全部变量、静态全局变量、类静态变量、atexit回调函数的调用顺序

巩固下c++基础，代码如下：

#include <iostream>
#include <vector>
#include <map>
#include <string>

std::vector<void*> structure;
std::map<void*, std::string> info;

class test1
{
public:
	test1(){
		structure.push_back(this);
	}

	~test1(){
		std::cout<<this<<"---~test1\n";
	}
};

class test2
{
public:
	test2(){
		structure.push_back(this);
	}

	~test2(){
		std::cout<<this<<"---~test2\n";
	}

	static test1 test1_;
};

class test3
{
public:
	test3(){
		structure.push_back(this);
	}

	~test3(){
		std::cout<<this<<"---~test3\n";
	}
};

class test4
{
public:
	test4(){
		structure.push_back(this);
	}

	~test4(){
		std::cout<<this<<"---~test4\n";
	}


	static test3 test3_;
};

void OnExit()
{
	std::cout<<"--------------------------------------\n";
	std::cout<<"Call OnExit\n";
}

static test3 static_test3_;
static test1 static_test1_;
test2 test2_;
test1 test1_;
test3 test4::test3_;
test1 test2::test1_;

int main(int argc, _TCHAR* argv[])
{
	std::cout<<"--------------------------------------\n";
	std::cout<<"Regist OnExit\n";
	atexit(OnExit);

	info[&test2_] = "全局变量test2_";
	info[&test1_] = "全局变量test1_";
	info[&static_test1_] = "静态全局变量test1_";
	info[&static_test3_] = "静态全局变量test3_";
	info[&test2::test1_] = "静态类变量test2::test1_";
	info[&test4::test3_] = "静态类变量test4::test3_";

	std::cout<<"------------------构造----------------\n";
	for(auto iter = structure.begin(), end = structure.end(); iter != end; ++iter)
	{
		std::cout<<*iter<<"---"<<info[*iter]<<"\n";
	}

	return 0;
}

执行结果：

总结：

1.全局变量，静态全局变量，类静态变量的构造顺序依赖于其定义顺序。

2.全局变量，静态全局变量，类静态变量的析构顺序和构造顺序相反。

3.atexit回调函数调用先与全局变量，静态全局变量，类静态变量析构函数调用。