VC6.0上编译的程序使用不调用全局对象的析构函数

来源：互联网发布：stm32编程入门百度云编辑：程序博客网时间：2024/06/14 13:41

编译环境如下

编译器：VC 6.0

操作系统：Window 7

测试代码一：

#include <iostream>#include <string.h>using namespace std;class CDemo{public:CDemo(const char* str);~CDemo();private:char name[20];};CDemo::CDemo(const char* str){strncpy(name, str, 19);name[19] = '/0';cout << "Constructor called for " << name << endl;}CDemo::~CDemo(){cout << "Destructor called for " << name << endl;}CDemo c_global("global object");static CDemo c_static("static object");void main(void){CDemo c_local("local object");}

代码一执行结果：

将代码一中的"using namespace std;"去掉，并把“#include <iostream>”改成"#include <iostream.h>"后的代码二如下：

#include <iostream.h>#include <string.h>class CDemo{public:CDemo(const char* str);~CDemo();private:char name[20];};CDemo::CDemo(const char* str){strncpy(name, str, 19);name[19] = '/0';cout << "Constructor called for " << name << endl;}CDemo::~CDemo(){cout << "Destructor called for " << name << endl;}CDemo c_global("global object");static CDemo c_static("static object");void main(void){CDemo c_local("local object");}

代码二的执行结果：