Geometry Boost List: Re: [geometry] Boost.Geometry models initializer_lists

Subject: Re: [geometry] Boost.Geometry models initializer_lists
From: Adam Wulkiewicz (adam.wulkiewicz_at_[hidden])
Date: 2014-03-07 19:20:25

Hi,

Bruno Lalande wrote:
> Hi,
>
>     Do you think that the support for C++11 initializer_list is needed
>     (and sufficient). It would probably look like this:
>
>     polygon_type polygon{ {{0, 0},{0, 10},{10, 10},{10, 0},{0, 0}} ,
>                           {{1, 1},{2, 1},{2, 2},{1, 2},{1, 1}}};
>
>     or that we should also provide a chaining tool working in C++98?
>
>
> Do we really have the choice? Aren't Boost libraries supposed to 
> always support pure C++98?
>

I doubt it. Around Boost various features are used  when they're 
supported by the compiler. Often they're of course emulated in C++98 but 
even then this has limitations so effectively there are things which can 
be done only in C++11. What is more, some people on the list already 
mentioned about the implementation of libraries which would require some 
features from C++11 to compile.

We could just check:

|#ifndef BOOST_NO_CXX11_HDR_INITIALIZER_LIST|

Regards,
Adam