Re: [boost] Re: about function.hpp

From: Jesse Jones (jesjones_at_[hidden])
Date: 2001-05-08 21:17:16

At 9:18 AM -0400 5/8/01, Douglas Gregor wrote:
>On Monday 07 May 2001 08:45 pm, you wrote:
>>  I've been experimenting with adding support for comparisons to my
>>  callback proposal from last year. The overall design is quite a bit
>>  simpler than Gregor's code, but it has the same sort of problems if
>>  you try to add operator==.
>
><Doug looks at the mess that is boost::function, shakes his head and grumbles
>about virtual function overhead>

But if it results in a simpler design it might be worth it. :-)

>Here's what I've been considering:
>
>function is:
>	- Assignment from any target function object
>	- Clearing out the value (assignment from nil)
>	- Execution of that target function object
>	- A check to see if it is empty
>
>callback extends function:
>	- Equality test

I think this is probably the best solution for boost.

   -- Jesse