From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <hbusch@bnv-bamberg.de>
Received: from chlothar.bnv-bamberg.de (chlothar.bnv-bamberg.de
 [188.64.62.104])
 by sourceware.org (Postfix) with ESMTPS id 8525038708C8
 for <gcc-help@gcc.gnu.org>; Mon,  8 Jun 2020 11:44:13 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 8525038708C8
Authentication-Results: sourceware.org; dmarc=none (p=none dis=none)
 header.from=bnv-bamberg.de
Authentication-Results: sourceware.org;
 spf=none smtp.mailfrom=hbusch@bnv-bamberg.de
Received: from localhost ([::1]:51300 helo=chlothar.bnv-bamberg.de)
 by chlothar.bnv-bamberg.de with esmtp id 1jiGCK-00086H-6n 
 BNV-Stage out; Mon, 08 Jun 2020 13:44:12 +0200
Received: from fredegunde.bnvvpn.bnv-bamberg.de ([192.168.1.11]:44638
 helo=webmail.bnv-bamberg.de)
 by chlothar.bnv-bamberg.de with esmtps (TLS1:ECDHE-RSA-AES256-SHA:256)
 (Exim 42.0.0) (envelope-from <hbusch@bnv-bamberg.de>)
 id 1jiGCK-000866-4X BNV-Stage in; Mon, 08 Jun 2020 13:44:12 +0200
Received: from fttx-pool-80.208.209.185.bambit.de
 (fttx-pool-80.208.209.185.bambit.de [80.208.209.185]) by
 webmail.bnv-bamberg.de (Horde Framework) with HTTPS; Mon, 08 Jun 2020
 13:44:12 +0200
Date: Mon, 08 Jun 2020 13:44:12 +0200
Message-ID: <20200608134412.Horde.mIJ7NQthkPEbn-W1QLIxrj9@webmail.bnv-bamberg.de>
From: hbusch@bnv-bamberg.de
To: Jonathan Wakely <jwakely.gcc@gmail.com>
Cc: gcc-help <gcc-help@gcc.gnu.org>
Subject: Re: g++ version 7.5.0 and library <memory_resource>
References: <20200607211018.Horde.adcpNdzA9nyGq1LTPXZrKaW@webmail.bnv-bamberg.de>
 <alpine.DEB.2.22.394.2006072117500.31072@stedding.saclay.inria.fr>
 <20200608064244.Horde.oyKLkkNT3lFysQLTt_gU5hh@webmail.bnv-bamberg.de>
 <CAH6eHdQMpPP_N_N3tYSzTDRwMs-0nJDJa2S+JcCzFS+wg9jgTg@mail.gmail.com>
In-Reply-To: <CAH6eHdQMpPP_N_N3tYSzTDRwMs-0nJDJa2S+JcCzFS+wg9jgTg@mail.gmail.com>
User-Agent: Horde Application Framework 5
Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes
MIME-Version: 1.0
Content-Disposition: inline
X-Spam-Status: No, score=1.8 required=5.0 tests=BAYES_50, KAM_DMARC_STATUS,
 KAM_LAZY_DOMAIN_SECURITY, KAM_SHORT, SPF_HELO_NONE,
 SPF_NONE autolearn=no autolearn_force=no version=3.4.2
X-Spam-Level: *
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: gcc-help@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-help mailing list <gcc-help.gcc.gnu.org>
List-Unsubscribe: <http://gcc.gnu.org/mailman/options/gcc-help>,
 <mailto:gcc-help-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-help/>
List-Post: <mailto:gcc-help@gcc.gnu.org>
List-Help: <mailto:gcc-help-request@gcc.gnu.org?subject=help>
List-Subscribe: <http://gcc.gnu.org/mailman/listinfo/gcc-help>,
 <mailto:gcc-help-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Mon, 08 Jun 2020 11:44:14 -0000

You are right Jonathan, at least I do not get an error from the  
compiler complaining about <memory_resource> when I use  
<experimental/memory_resource>.

However, the next hurdle for the compiler is the following statement:

std::pmr::monotonic_buffer_resource ...

So at least this seems not be be included.

Thanks for your kind help here.

Best regards
Harald


Thanks a lot Jonatahan f

Quoting Jonathan Wakely <jwakely.gcc@gmail.com>:

> On Mon, 8 Jun 2020 at 05:43, <hbusch@bnv-bamberg.de> wrote:
>>
>> Thanks a lot Marc for your quick help.
>> Even <experimental/memory_resource> did not help.
>>
>> Here ...
>>
>> https://gcc.gnu.org/onlinedocs/gcc-7.5.0/libstdc++/manual/manual/status.html#status.iso.2017
>>
>> ... I see that 7.5.0 does not include memory_resource.
>
> But <experimental/memory_resource> and <memory_resource> are two
> different headers.
>
> GCC 7.5.0 *does* provide <experimental/memory_resource>, as documented
> in Table 1.4 at
> https://gcc.gnu.org/onlinedocs/gcc-7.5.0/libstdc++/manual/manual/status.html#status.iso.2014
> where it shows that the "Polymorphic memory resources" component of
> the Library Fundamental Techncial Specification is partially
> supported.