How to change the actual argument passed to a function in C?

Question

I want to change the actual argument passed to a function and not a copy of it. For example:

char str[] = \"This is a string\";

I want to c

Answer 1

You may pass char*. The pointer will be copied, but it will still point to the same string

If you need the pointer itself to be passed (not its copy) you should pass a char**