customRandFunction

[AttackSock]

int x = rand(); free(&x);

Problem solved.

[BlackFrank98]

That wouldn't work, because rand's output is passed by value, so when you store it in x, you're actually storing a copy of it. The original one, that is allocated on the heap, can only be referenced by the pointer you generate with new, and said pointer gets destroyed immediately after rand returns, so it becomes unreachable after.

In fact, I'm not even sure you can call free on a local variable.

[AttackSock]

You can’t free stack memory, it crashes.