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Re: [patch] Simplify std::tuple helpers and fix C++14 bug.
- From: Daniel Krügler <daniel dot kruegler at gmail dot com>
- To: Jonathan Wakely <jwakely at redhat dot com>
- Cc: "libstdc++" <libstdc++ at gcc dot gnu dot org>, gcc-patches List <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 15 May 2014 07:36:26 +0200
- Subject: Re: [patch] Simplify std::tuple helpers and fix C++14 bug.
- Authentication-results: sourceware.org; auth=none
- References: <20140514222236 dot GG10556 at redhat dot com>
2014-05-15 0:22 GMT+02:00 Jonathan Wakely <firstname.lastname@example.org>:
> I found a bug in the new std::get<Tp>(tuple<Types...>&&) function
> where it didn't compile when trying to access reference member.
> The rest of this patch simplifies the code in <tuple> by:
> - removing the redundant __add_ref etc. helpers.
> - defining a __tuple_element_t alias template.
> - removing duplication in the tuple_size<cv T> traits.
> - using static_assert in the relational operators.
Looking at the definition of the new alias
you might want to apply LWG 2313
and simplify its definition even further.