Subject: Re: [boost] [Block Pointer] Review Request
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2011-05-02 17:35:39
On 02/05/2011 21:32, Phil Bouchard wrote:
> On 5/2/2011 10:09 AM, Mathias Gaunard wrote:
>>
>> Order of instantiation is irrelevant outside of RAII management
>> patterns, since an object may outlive its creator (that's the point).
>
> If block A was instantiated first then block A is necessarily the parent
> of block B.
>
>> What do you mean by the block_ptr will be invalidated? The pointer will
>> be set to zero?
>
> Precisely.
>
>> So that's something any user should be ready for, check block pointers
>> are non-zero in destructors?
>
> It's already done implicitly in the destruction of the block_ptrs. Right
> before they'll be destroyed the pointer will still refer to the
> deallocated memory block.
Right, but the user could still try do do
some_block_ptr->some_member_function()
if some_block_ptr is null, this will lead to an error.
You should talk about this in the documentation.