Hello all, recently I gave my C++ exam, I came across this question. I was unable to understand the logic.

Can anyone explain what happens inside foo() ?

Thanks for your help :)

#include <iostream>
using namespace std;

void foo(char **p);

int main()
{
    char *argv[] = {"ab","cd","ef","gh","ij","kl"};
    foo(argv);
    return 0;
}

void foo(char **p)
{
    char *t = (p += sizeof(int))[-1];
    cout << t << '\n';
}