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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;
}
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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
