Why am I able to make a function call using an invalid class pointer

Question

In below code snippet, although pointer is not initialized the call is still made successfully

temp *ptr;
ptr->func2();

Is it due to C++

Answer 1

Its not working. Its just by luck that your application is not crashing where your expecting it to crash. Its not a feature but a side-effect of the compiler which is allowing the function call to seem to work.