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Subject: Re: [boost] [gsoc16] Can I quickly check if the below really is the best approach?
From: Gottlob Frege (gottlobfrege_at_[hidden])
Date: 2016-01-14 12:45:28


On Wed, Jan 13, 2016 at 1:56 PM, Nevin Liber <nevin_at_[hidden]> wrote:
> On 13 January 2016 at 12:25, Lee Clagett <forum_at_[hidden]> wrote:
>
>> The macro `STRING_VIEW` seems unnecessary because the `string_view`
>> constructor taking a single NULL-terminated string is also
>> `constexpr`.
>>
>
> While the templated constructor for basic_string_view is constexpr, this
> constructor for string_view cannot be used in a constexpr context because
> char_traits<char>::length isn't constexpr. :-( See LWG 2232
> <http://cplusplus.github.io/LWG/lwg-active.html#2232>.
>
> I've been told it works this way by design...
>
> So yes, we do need the macro.

Can it be a constexpr function that returns an initializer list? Or
something, anything,... I hate macros :-(


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