Re: [boost] [GSoC][Phoenix3] Regarding mutability of arguments passed to phoenix expressions

Subject: Re: [boost] [GSoC][Phoenix3] Regarding mutability of arguments passed to phoenix expressions
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2010-04-28 13:43:43

Eric Niebler wrote:
> On 4/28/2010 10:19 AM, Mathias Gaunard wrote:
> > Thomas Heller wrote:
> >> Regarding arguments to phoenix expressions there are two
> >> possibilities.
> >> The first is: Arguments are mutable. The current phoenix is
> >> implemented to be able to this.
>
> We now have lambdas in C++0x. IMO, we should be paying
> attention to the
> default semantics of lambdas which, IIRC, accept their arguments by
> value(?), and have special syntax for accepting their arguments by
> reference. Someone should correct me if I got that backwards. In the

The introducer uses & before names to get references.  By value is the default.

> long haul, I think this will satisfy the Principle of Least Surprise.

Agreed.

_____
Rob Stewart                           robert.stewart_at_[hidden]
Software Engineer, Core Software      using std::disclaimer;
Susquehanna International Group, LLP  http://www.sig.com

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