This is the mail archive of the libstdc++@gcc.gnu.org mailing list for the libstdc++ project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

[PATCH] Reorder std::scoped_lock parameters as per P0739R0 DR status

From: Jonathan Wakely <jwakely at redhat dot com>
To: libstdc++ at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Sat, 15 Jul 2017 16:48:42 +0100
Subject: [PATCH] Reorder std::scoped_lock parameters as per P0739R0 DR status
Authentication-results: sourceware.org; auth=none
Authentication-results: ext-mx05.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com
Authentication-results: ext-mx05.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=jwakely at redhat dot com
Dkim-filter: OpenDKIM Filter v2.11.0 mx1.redhat.com BDE1919D4CF
Dmarc-filter: OpenDMARC Filter v1.3.2 mx1.redhat.com BDE1919D4CF

WG21 just approved this change as a DR for C++17, so that class
template argument deduction works when using std::adopt_lock with a
std::scoped_lock.

	* include/std/mutex (scoped_lock): Reorder std::adopt_lock_t parameter
	as per P0739R0.
	* testsuite/30_threads/scoped_lock/cons/1.cc: Reorder arguments.
	* testsuite/30_threads/scoped_lock/cons/deduction.cc: Test deduction
	with std::adopt_lock_t.
	* testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Check
	feature-test macro.

Tested powerpc64le-linux, committed to trunk.

I think we should also make this change and the r250213 one to
std::variant (which is in the same paper) on gcc-7-branch.

Attachment: patch.txt
Description: Text document

Follow-Ups:
- Re: [PATCH] Reorder std::scoped_lock parameters as per P0739R0 DR status
  - From: Ville Voutilainen

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]