If you have something which contains pointers, you should have a destructor function for it, which itself should check if the pointer is not NULL before attempting to free any fields.
If you have something which contains pointers, you should have a destructor function for it, which itself should check if the pointer is not NULL before attempting to free any fields.
We are talking about C. A destructor function in C is a function that gets called when the library gets unloaded. No you shouldn't have a destructor function for it.
The C language has no such concept of attribute destructor and I am not talking about attribute destructor.
I just mean, in the simple English sense, a function which exists to deallocate a structure.
That's certainly one way to do it if you're writing all the code.
If you have something which doesn't come with such a function, nothing stops you writing it?