Re: [Boost-users] [proto] problem with templated recursive transform

Subject: Re: [Boost-users] [proto] problem with templated recursive transform
From: Markus Werle (numerical.simulation_at_[hidden])
Date: 2009-02-10 02:57:55

Eric Niebler <eric <at> boost-consulting.com> writes:

> You can get pretty far with preprocessor hacks to hide the msvc 
> workarounds. Here's something to get your gears turning:
> 
> #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1500))
> #define _value(x)     call<proto::_value(x)>
> #endif
> 
> Now, if proto::_value(proto::_left) shows up in your grammar, it gets 
> turned into proto::call<proto::_value(proto::_left)>. I use this trick a 
> lot.

Cool stuff, Eric, but I nearly missed that one.
Could you copy'n'paste this to the "Unsorted tips and tricks" section
of the proto docs? 

Markus

(Who is forced to program in C#/CLI for a while instead of working 
with proto :-( )