From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id C5kTOFRAcl/yLgAAWB0awg (envelope-from ) for ; Mon, 28 Sep 2020 15:58:12 -0400 Received: by simark.ca (Postfix, from userid 112) id D6C941E591; Mon, 28 Sep 2020 15:58:12 -0400 (EDT) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on simark.ca X-Spam-Level: X-Spam-Status: No, score=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id 368041E58E for ; Mon, 28 Sep 2020 15:58:11 -0400 (EDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id B3CFC3954419; Mon, 28 Sep 2020 19:58:10 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B3CFC3954419 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1601323090; bh=MzSl0t743/+F5vIdNxZN1r5pQSgVTwHEQ0wnIEq/Imc=; h=Subject:To:References:Date:In-Reply-To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=PelXpewUhr3iKQlmuhrQd96m/kd7H68GIm9BC/KaxOkM4YPsatkWk8/ZryARoGovW mlO4AiQYakWPz/f/HGC82eqSxooYTf3LLiRPsUuq8fgmuJFdwNzTf7LENPs/aCECUK DM4fqW5xIaYAHVAAVbSxs73jzXlHeYTuOv/3WBO4= Received: from mail-qt1-x844.google.com (mail-qt1-x844.google.com [IPv6:2607:f8b0:4864:20::844]) by sourceware.org (Postfix) with ESMTPS id 5C20E3950C6A for ; Mon, 28 Sep 2020 19:58:09 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 5C20E3950C6A Received: by mail-qt1-x844.google.com with SMTP id n10so1788298qtv.3 for ; Mon, 28 Sep 2020 12:58:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=MzSl0t743/+F5vIdNxZN1r5pQSgVTwHEQ0wnIEq/Imc=; b=HzNDH6UD41Ee9wBOhbKYdIFzQqWwIZySrYWTSE4j8Owsk22GhAZkY7uGADzrosJOhO laadd56d/Gjyr3VpicBWahyxPaV6tsUf8BaiAe96sTyBYXGCIalNdgrnkFLEaxrSkUlG N2xCDAner9JzRIjPLIZfbnyLsrCAWwmgAXpO1Fx5R0hyZ994MSNObkbeQ/HCt38PISIJ zQCfk8jx32kawlvYG2CY8Nu0dgHdTnaZdEKvk+F7zaD8VvabhN9kIeNsFcDFo+kxfkil 9Gd4jkLJLoScoiX9v2jHcjSjJy5zn2toJIGu4TVo3urY0KKvlPd8fpYGheXMayiXg1jK 90WQ== X-Gm-Message-State: AOAM531wHFJIMoVeVJogYK/wYnbrqXAZVZvpeLyRa/R9VyUDZNVpgvlN TXj9k5CZefZUBi/6jQ5TxBBIOIqmtou4jg== X-Google-Smtp-Source: ABdhPJxprBBKIkNi/WGdSgk6/+WYA4wFvsYi1Erkt54c4ejyhYZnHvCLjN90b8QNssSkTcYmDmG/5Q== X-Received: by 2002:ac8:7413:: with SMTP id p19mr3350118qtq.347.1601323088721; Mon, 28 Sep 2020 12:58:08 -0700 (PDT) Received: from ?IPv6:2804:7f0:8283:9bb9:7026:c4cb:b3cb:24f2? ([2804:7f0:8283:9bb9:7026:c4cb:b3cb:24f2]) by smtp.gmail.com with ESMTPSA id a25sm2293175qtd.8.2020.09.28.12.58.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 28 Sep 2020 12:58:08 -0700 (PDT) Subject: Re: [PATCH 1/3] Rewrite valid-expr.h's internals in terms of the detection idiom (C++17/N4502) To: Tom Tromey , Pedro Alves References: <20200821144523.19451-1-pedro@palves.net> <20200821144523.19451-2-pedro@palves.net> <87mu19hgmh.fsf@tromey.com> Message-ID: <7dc15697-160f-e1a9-84da-f7a770e36a80@linaro.org> Date: Mon, 28 Sep 2020 16:58:05 -0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <87mu19hgmh.fsf@tromey.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Luis Machado via Gdb-patches Reply-To: Luis Machado Cc: gdb-patches@sourceware.org Errors-To: gdb-patches-bounces@sourceware.org Sender: "Gdb-patches" On 9/28/20 3:59 PM, Tom Tromey wrote: >>>>>> "Pedro" == Pedro Alves writes: > > Pedro> + static_assert (gdb::is_detected_exact Pedro> + archetype, TYPES>::value == VALID, \ > Pedro> ""); \ > > > I'm not sure if it was exactly this patch, but after I merged this code > to our internal tree, we started having build problems on a machine that > uses GCC 6.4. I've appended the error message. > > I'm not sure it is worth doing anything about this, but I thought it > would be worth noting in case anybody else winds up in this situation. > > Tom It was reported before on this thread a week or so ago. Unless GCC 6.4 isn't supported any longer, I think it should be fixed. If GCC 6.4 isn't supported, then we should make that explicit on the documentation to spare folks the trouble of having to figure it out.