记得局部变量在栈中的地址是连续分配,今天在VS2010上发现局部变量在栈中的地址不是连续分配,查了一些资料,有的说是编译器的分配地址的算法不同而至。具体如下:
输出:&iv 003DFBCC
&iv1 003DFBC0
&iv2 003DFBB4
&iv3 003DFBA8
&iv4 003DFB9C
他们之间的地址相差12bytes 其中4bytes用于存储数据,8bytes用于存储其它
#include <iostream>
using namespace std;
int main()
{
int iv;
cout << "&iv " << &iv << endl;
cout << "iv " << iv << endl;
int iv2 = 1024;
cout << "&iv2 " << &iv2 << endl;
int iv3 = 999;
cout << "&iv3 " << &iv3 << endl;
int iv4 = 100,iv5 = 200,iv6 = 300;;
cout << "&iv4 " << &iv4 << endl;
cout << "&iv5 " << &iv5 << endl;
cout << "&iv6 " << &iv6 << endl;
int &reiv = iv2;
cout << "&reiv= " << reiv <<endl;
int &reiv2 = iv;
cout << "&reiv2= " << reiv2 <<endl;
int &reiv3 = iv;
cout << "&reiv3= " << reiv3 <<endl;
int *pi;
cout << "&pi= " << pi <<endl;
*pi = 5;
cout << "*pi" << *pi << endl;
pi = &iv3;
const double di = 2.0;
cout << "&di= " << &di <<endl;
const double maxWage = 10.0;
const double *pc = &maxWage;
cout << "pc= " << pc <<endl;
cout << "*pc= " << *pc <<endl;
return 0;
}
输出:&iv 003DFBCC
&iv1 003DFBC0
&iv2 003DFBB4
&iv3 003DFBA8
&iv4 003DFB9C
他们之间的地址相差12bytes 其中4bytes用于存储数据,8bytes用于存储其它