Re: [boost] Should I use std::get or boost::get (or both) in Boost.Array

Subject: Re: [boost] Should I use std::get or boost::get (or both) in Boost.Array
From: Jeremiah Willcock (jewillco_at_[hidden])
Date: 2012-12-18 16:27:17

On Tue, 18 Dec 2012, Marshall Clow wrote:

> I've got a feature request for Boost.Array to provide compile-time checked access to the members of an array.
>
> In C++11,  this is done using std::get<Idx> (std::array).
> Fine, I can specialize this in Boost.Array - well, for C++11.
> I can't specialize a nonexistent template in namespace std for C++03 (well, I _can_ but the standard says I must not).
>
> But Boost.Tuple has a get<> template.
> I believe I can specialize that for Boost.Array, w/o stepping on Boost.Tuples code.
>
> What do people think?
> 	boost::get?
> 	std::get?
>
> Both?

Boost.Graph also has functions named boost::get (without any explicit 
template parameters needing to be specified); that has caused trouble 
before.  If you avoid conflicting with Boost.Variant's use of boost::get, 
though, you are likely to avoid Boost.Graph's uses as well.  That may not 
be an issue if you are overloading existing implementations that already 
work (albeit with tuple types, not arrays), though.  Please be sure your 
changes work in the libs/graph/test/grid_graph_cc.cpp and 
libs/graph/test/grid_graph_test.cpp tests; boost/graph/grid_graph.hpp 
already defines functions named boost::get with boost::arrays and pairs of 
them as parameters (but with other parameter types that do not conflict 
with yours).

-- Jeremiah Willcock