stack memory

#include <iostream>

using namespace std;

char* GetMem(void)
{
    char p[] = "hello";
    return p;
};

void main()
{
    char c[] = "a";
    char* ptr = c;
    ptr = GetMem();
    //strcpy(ptr,"hello!");
    cout << ptr << endl;
    cout << *ptr << endl;
    cout << &ptr << endl;
}