Re: free()


Racaille wrote:
On Feb 10, 2:13 pm, "santosh" <santosh....@xxxxxxxxx> wrote:
things yourself. One safe practise is to immediately set a pointer to
NULL after calling free() on it. Passing a null pointer to free() is
harmless.

this is a very bad idea.

instead of having your code crash like hell in the
first phases of debugging, which will allow you
to fix the thing quick & properly, you will happily
call free() many times on the same pointer, and
build crap around that broken logic, and then
call for a garbage collector :)

I argue that attempting to ensure that pointers are either null or
have legally deferencible values is better. A null pointer is by
definition an unusable pointer. A pointer with an indeterminate value,
on the other hand, may or may not exhibit observable error, when
misused. I prefer to take the more deterministic route.

.

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