Find size of a function in C

Question

I am learning function pointers,I understand that we can point to functions using function pointers.Then I assume that they stay in memory.Do they stay in stack or heap?Can

Answer 1

C has no garbage collector. Having a pointer to something doesn't make it stay in memory.

Functions are always in memory, whether or not you use them, whether or not you keep a pointer to them.

Dynamically allocated memory can be freed, but it has nothing to do with keeping a pointer to it. You shouldn't keep pointer to memory you have freed, and you should free it before losing the pointer to it, but the language doesn't do it automatically.