Buffer overflow curiosity

file












makefile

# Done like this because it's closest to what I have in prod
main: test.o
	g++ -g test.o -o test;
test.o: test.cpp
	g++ -c -g test.cpp;

test.cpp

#include <fstream>
#include <iostream>

#define INTBLOCK 1

using namespace std;

std::ifstream file;
streampos pointer;

// Play with the comments and you'll see what I mean
int integer(){
    int x;//= 0;
    file.seekg (pointer, ios::beg);
    file.read ((char*)&x, INTBLOCK);
    pointer += INTBLOCK;
    //cout << x;
    //cout << "\n";
    return x;
}

int main(){
    pointer = 0;
    file.open("file", ios::in|ios::binary|ios::ate);
    int count = integer();
    int ints[count] = { };
    for (int i = 0; i < count; ++i) {
        ints[i] = integer();
    }

    for (int i = 0; i < count; ++i) {
        cout << ints[i];
    }
}