At Fri, 11 Jun 2010 12:36:56 -0400, Eric Niebler wrote:
On 6/11/2010 12:27 PM, David Abrahams wrote:
At Fri, 11 Jun 2010 12:12:27 -0400,
makes it by-val. Under the hood, Phoenix would actually be storing every captured variable both by value and by reference.
!! Sounds expensive.
The plan has always been to make capture-by-value the default. Saving off a reference as well is free.
Yeah, that's a fine default. I mean it's expensive when the user decides he really wanted the reference.
Be cautious, also, about designing for C++98 at the expense of a good 0x interface.
Agreed in principle, but I don't think we have much choice at this point. We want Phoenix to be usable today.
Yes, but consider tolerating some inconvenience or ugliness in 03 if it makes things better under 0x. -- Dave Abrahams BoostPro Computing http://www.boostpro.com