Re: [boost] boost::function overhead?

From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2006-05-02 14:37:10

Doug Gregor wrote:
> On May 2, 2006, at 1:01 PM, Neal Becker wrote:
> 
> 
>>David Abrahams wrote:
>>
>>>Actually it's not a virtual call, it's a call through a function
>>>pointer.  That's one less indirection.
>>>
>>
>>Do you think a smart compiler might optimize this to a direct call?
> 
> 
> I have yet to see a compiler smart enough to optimize this indirection.

IOW, the overhead might be *significant* for small functions that would 
otherwise be inlined (and insignificant for larger functions).

-Thorsten