do i need to free variables?

[serkan sendur]

to make the programs more efficient, do i need to free variables which are declared locally in the functions? Are they not disposed when the function ends?

[Narue]

You only need to explicitly free resources that you explicitly ask for. For example, a FILE* given to you by fopen needs to be closed, and a pointer given to you by malloc needs to be freed.

[Salem]

If you call malloc, then you need to call free.

The compiler looks after allocation and deallocation of local variables.

[ddanbe]

You do not need to free local variables when the function ends. Where would they be anyway? Who or what could still access them?

[serkan sendur]

So when i declare a local variable inside a function, it will be disposed from the memory automatically? And i should dispose it myself if i create it using malloc?

[Narue]

>So when i declare a local variable inside a function,
>it will be disposed from the memory automatically?
Yes.

>And i should dispose it myself if i create it using malloc?
Yes.