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#include <iostream>#include <cstdlib>using namespace std;
class A{
public:
A(void){
cout << "A::A()" << endl;
}
~A(void){
cout << "A::~A()" << endl;
}
static void* operator new(size_t size){
cout << "A::new" << endl;
void* pv = malloc(size);
return pv;
}
static void operator delete(void* pv) {
cout << "A::delete" << endl;
free(pv);
}
};int main(void){
A* pa = new A;
delete pa;
return 0;
} |
结果为:
A::new
A::A()
A::~A()
A::delete
由此我们可以知道,new 对象时,先new在调用其构造,
delete对象的时,先调用其析构,再delete
本文转自神ge 51CTO博客，原文链接:http://blog.51cto.com/12218412/1866959