Re: [boost] Shared Map

From: Michael Marcin (mmarcin_at_[hidden])
Date: 2007-08-10 20:14:29

Mathias Gaunard wrote:
> Martin Bonner wrote:
>> loufoque wrote: 
>>> Libraries that produce needless copies are simply ill-designed, 
>> The obvious case is return by value.  I know that there are some compiler optimizations that can help here, but we have to work with the compilers we have.
> 
> No exisiting decent C++ compiler doesn't perform NRVO.
> The only compiler I know that performs RVO and not NRVO is MSVC6, and it 
> certainly isn't decent.
> 

What about MSVC 7.1?

IIRC it does unnamed RVO but not NRVO (which was added in MSVC8).

Overall its still a decent compiler... it does a better job than VC8 in 
some cases.

- Michael Marcin