This is the mail archive of the
libstdc++@gcc.gnu.org
mailing list for the libstdc++ project.
Re: [v3 PATCH] Implement LWG 2825, LWG 2756 breaks class template argument deduction for optional.
- From: Jonathan Wakely <jwakely at redhat dot com>
- To: Ville Voutilainen <ville dot voutilainen at gmail dot com>
- Cc: libstdc++ <libstdc++ at gcc dot gnu dot org>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Mon, 30 Jan 2017 13:36:14 +0000
- Subject: Re: [v3 PATCH] Implement LWG 2825, LWG 2756 breaks class template argument deduction for optional.
- Authentication-results: sourceware.org; auth=none
- References: <CAFk2RUa1gqaEgxUpcByBBCorL0Y7K81M+Sbi=q_eUdf1XXu52A@mail.gmail.com> <20170130132821.GR3093@redhat.com>
On 30/01/17 13:28 +0000, Jonathan Wakely wrote:
On 30/01/17 13:47 +0200, Ville Voutilainen wrote:
Tested on Linux-x64.
OK, thanks.
To be clear: this isn't approved by LWG yet, but I think we can be a
bit adventurous with deduction guides and add them for experimental
C++17 features. Getting more usage experience before we standardise
these things will be good, and deduction guides are very new and
untried. If we find problems we can remove them again, and will have
invaluable feedback for the standards committee.