Re: [boost] [Containers] String performance and compatibility

Subject: Re: [boost] [Containers] String performance and compatibility
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2011-08-05 01:59:33

El 05/08/2011 1:44, Phil Endecott escribió:
> Hi Ion,
>
> I see that your string implementation has a small buffer optimisation
> (SBO). Have you tried to benchmark this, and/or any of the other design
> decisions? I vaguely recall that libc++ may have done some measurements
> but I can't find anything now.

I havent' measured it thoroughly. It's based on the same ideas libc++ 
uses, and I have no other non-SBO implementation to compare. Maybe an 
easy task is to compare this string with other standard libraries that 
use SBO.

> Also, have you considered adding e.g. a ctor that takes a std::string,
> for interoperability? (I guess the same could be asked for the other
> types.)

That might be a good addition if there is consensus for that. You can 
just use target.assign(src.begin(), src.end()) but I think the 
constructor could optimize some conversions, like ordered containers.

Ion