Re: [boost] [convert] Default Syntax Idea

Subject: Re: [boost] [convert] Default Syntax Idea
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-02-25 09:39:44

On Wednesday, February 25, 2009 9:14 AM
Joel Falcou wrote:
> Eric MALENFANT a écrit :
> > boost-bounces_at_[hidden] wrote:
> >
> >> Now I am not so sure. In isolation it looks good:
> >>
> >>     int j = convert_to<int>(s) | 5;
> >>
> >> What happens when we start mixing with
> >>
> >>     int j = convert_to<int>(s) | 5 >> std::hex;
> >>     int j = convert_to<int>(s) | 5 >> boost::dothow >> std::hex; or
> >>     even int j = convert_to<int>(s) >> boost::dothow >>
> std::hex | 5;
> >
> > To add to the "I am not sure" side: What if I want to perform a
> > bitwise-or on the result of convert_to<int>
> What about being on the safe side with :
>
> int j = convert_to<int>(s) | default_(5);

This would be more direct if you're going to include "default_" in the call:

   convert<int>(s).default_(5);

_____
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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