[boost] Re: Safe bool idiom

From: David Abrahams (dave_at_[hidden])
Date: 2003-09-11 11:48:15

Richard Hadsell <hadsell_at_[hidden]> writes:

> Peter Dimov wrote:
>
>>I think that the actual difference is small to nonexistent, but if this
>>issue is considered important, we can switch from a member function pointer
>>to a data member pointer as the unspecified bool type. ...
>>
> If the data member would add to its memory footprint, the result would
> be even less palatable.  Memory is as important as performance for my
> app, and more important than syntactic beauty.

You don't need an actual member to form a null data member pointer.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com