Doug Gregor wrote:
On Jan 9, 2006, at 11:55 AM, Peter Dimov wrote:
Yes. It would be interesting to measure the performance for larger buffer sizes, though. The break-even point should occur somewhere around 32 or 48, maybe even 64 if the allocator is bad enough.
Yeah, that's possible. I don't think it's just a matter of finding the break-even point for performance, though. function<> is supposed to replace function pointers, closures, etc. If it's significantly larger than those entities, it becomes harder to justify the use of function<>. We have two things to optimize here :(
Yes, it's obviously a tradeoff, but I don't think that function pointers and closures compete with function<>. You simply can't use a function pointer or a closure to duplicate function<>.