Code problems

Question

It must output whole your input but it doesn't for strange reason(which i don't know)

#include <iostream>

int main() {
char text, *arr = &text;
int i = 0;
while(std::cin >> text){
arr[i] = text;
std::cout << arr[i];
i++;
}
return 0;
}

//input ggg
//outputs g%g

Answer 1

There is no array in your program. When you do array[i] with i > 0 you corrupt a stack of your main function.

Answer 2

So after i corrupted my stack it does ok, why so?

Answer 3

Your corruption was big enough to change output, but not enough to break program. Try a long input string with different characters.