Re: [boost] [scope_guard] New revision available + naming consideration

From: Ariel Badichi (abadichi_at_[hidden])
Date: 2005-09-21 19:37:00

David Abrahams wrote:
>>>it's easy to arrange that only a literal zero works there.
>>
>>How?
> 
> 
> Allow assignment only from a private member pointer type.  It's
> similar to the operator safe_bool idiom.

I thought you might mean that. That allows more than a literal zero, 
though (e.g., 5 * 5 - 25). By the way, that might work well for smart 
pointers; why don't shared_ptr and friends use this idiom?

> No, the whole point of
> 
>     g = 0;
> 
> was to get you out of having to find a name for this thing.

:)