p6_3.cpp

来自「相当丰富的C++源码」· C++ 代码 · 共 40 行

/**************************************
*     p6_3.cpp                        *
*  显示各类变量的内存分配             *
***************************************/ 
#include <iostream>
using namespace std;
int k=300;
const int i=100;
#define n 10
const int j=200;
void fun(int i=1,int j=2) 
{
	  int k=3;	  
 	  static int l=0;
	  char *p=new char[n+1];
      for(int m=0;m<n;m++)
		  p[m]='A'+m;
	  p[m]='\0';
	  cout<<"Adddress of parameter variable:"<<endl;
      cout<<"&i="<<&i<<"\t"<<"&j="<<&j<<endl;
	  cout<<"Adddress of local variable:"<<endl;
      cout<<"&k="<<&k<<"\t"<<"&p="<<&p<<"\t"<<"&m="<<&m<<endl;
      cout<<"Adddress of static local variable:"<<endl;
      cout<<"&l="<<&l<<endl;
      cout<<"Address of heap: "<<(void *)p<<endl;
	  cout<<"before delete p="<<p<<endl;
	  delete [] p;
	  cout<<"after delete: "<<(void *)p<<endl;
	  cout<<"p="<<p<<endl;
}
void main() 
{
L1:	fun();
L2:	cout<<"Adddress of global variable:"<<endl;
	cout<<"&i="<<&i<<"\t"<<"&j="<<&j<<"\t"<<"&k="<<&k<<endl;
    cout<<"Address of function:"<<endl;
	cout<<"&fun="<<&fun<<"\t"<<"&main"<<&main<<endl;
}