test file being used

test2

int foo(int x) {
	return 2*x;
}

int bar(int x) {
	return 1;
}

void changePointer(int (**func)(int)) {
	*func = &bar;
}

int main() {
	int (*func)(int) = &foo;
	changePointer(&func);

	return func(42);
}