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From: Pedro Alves <palves@redhat.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: markus.t.metzger@intel.com, brobecker@adacore.com,
	       gdb-patches@sourceware.org, jan.kratochvil@redhat.com,
	       simon.marchi@ericsson.com
Subject: Re: [PATCH 1/3] Introduce gdb::unique_ptr
Date: Thu, 13 Oct 2016 12:12:00 -0000	[thread overview]
Message-ID: <32e74745-a5d6-e6b9-b699-d303580f2c92@redhat.com> (raw)
In-Reply-To: <834m4hbxlz.fsf@gnu.org>

On 10/12/2016 12:44 PM, Eli Zaretskii wrote:
>> Cc: markus.t.metzger@intel.com, brobecker@adacore.com,
>>         gdb-patches@sourceware.org, jan.kratochvil@redhat.com,
>>         simon.marchi@ericsson.com
>> From: Pedro Alves <palves@redhat.com>
>> Date: Wed, 12 Oct 2016 12:25:21 +0100
>>
>> On 10/12/2016 12:04 PM, Eli Zaretskii wrote:
>>>> Cc: brobecker@adacore.com, gdb-patches@sourceware.org,
>>>>         jan.kratochvil@redhat.com, simon.marchi@ericsson.com
>>>> From: Pedro Alves <palves@redhat.com>
>>>> Date: Wed, 12 Oct 2016 11:11:50 +0100
>>>>
>>>>>   . Should we start using C++11 features in GDB?
>>>>
>>>> I would hope that no one would suggest that we shouldn't use
>>>> C++11 features just because they like C++03 better than C++11.
>>>> That would make no sense.
>>>
>>> It would make perfect sense if we decide to require a version of GCC
>>> older than 4.8.1 as a prerequisite for building GDB.
>>
>> I can't see how that is a reply to what I said.  I said _liking_ C++11
>> better over C++03.  As in: "I'm just not going to use
>> C++11 features, because I hate C++11, but C++03 is perfectly
>> fine".
> 
> That's a no-brainer, 

Good that you agree.

> but if that was the only thing you were saying,

That was not the only thing I was saying...  That was preamble
for the next paragraph:

  "In my mind, the only reason you'd not use C++11 over C++03
  is simply because you couldn't because you don't have a ..."

It seems like we keep talking past each other.

> That decision
> has IMO very little to do with whether we like C++03 more or not,
> because if we go by that criterion alone, we should take Jan's
> suggestion and switch to the latest version as soon as it is released,
> right?

Right.  By that criteria, I'd switch to C++17 in a heart beat.
C++17 can make C++ code look significantly simpler and clearer.
Class template deduction makes me drool a bit:

 http://en.cppreference.com/w/cpp/language/class_template_deduction

Yet, I won't miss it nowhere nearly as badly as I miss C++11 features.

As I've been saying, IMO it's reasonable compiler availability
in distros that should matter.  GCC 7, which will be the first
release to fully support C++17 (or at least close enough) is not
even released yet.

Thanks,
Pedro Alves


  reply	other threads:[~2016-10-13 12:12 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-10 16:46 [PATCH 0/3] More cleanup elimination / gdb::unique_ptr Pedro Alves
2016-10-10 16:46 ` [PATCH 3/3] 'struct parse_expression *' -> gdb::unique_ptr<expression> Pedro Alves
2016-10-10 16:46 ` [PATCH 1/3] Introduce gdb::unique_ptr Pedro Alves
2016-10-10 17:49   ` Simon Marchi
2016-10-10 18:03     ` Pedro Alves
2016-10-11  6:48   ` Metzger, Markus T
2016-10-11 10:23     ` Pedro Alves
2016-10-11 10:53       ` Andreas Schwab
2016-10-11 11:17       ` Metzger, Markus T
2016-10-11 11:43         ` Pedro Alves
2016-10-11 13:58           ` Yao Qi
2016-10-11 14:05           ` Trevor Saunders
2016-10-11 12:16       ` Joel Brobecker
2016-10-11 13:46         ` Pedro Alves
2016-10-11 14:47           ` Joel Brobecker
2016-10-11 15:17             ` Eli Zaretskii
2016-10-11 16:24               ` Pedro Alves
2016-10-11 16:58                 ` Eli Zaretskii
2016-10-11 17:41                   ` Pedro Alves
2016-10-11 18:37                     ` Eli Zaretskii
2016-10-11 19:19                       ` Pedro Alves
2016-10-11 20:47                         ` Eli Zaretskii
2016-10-11 21:32                           ` Pedro Alves
2016-10-12  6:34                             ` Eli Zaretskii
2016-10-12  8:11                               ` Metzger, Markus T
2016-10-12  9:31                                 ` Eli Zaretskii
2016-10-12 10:12                                   ` Pedro Alves
2016-10-12 11:05                                     ` Eli Zaretskii
2016-10-12 11:25                                       ` Pedro Alves
2016-10-12 11:45                                         ` Eli Zaretskii
2016-10-13 12:12                                           ` Pedro Alves [this message]
2016-10-12 10:28                                 ` Pedro Alves
2016-10-12 11:07                                   ` Eli Zaretskii
2016-10-12 11:19                                     ` Pedro Alves
2016-10-12 11:41                                       ` Eli Zaretskii
2016-10-12 11:55                                         ` Pedro Alves
2016-10-13  0:38                                   ` [PATCH] Enable C++11 starting with gcc 4.8 (was: Re: [PATCH 1/3] Introduce gdb::unique_ptr) Pedro Alves
2016-10-13  0:45                                     ` [PATCH 1/2] gdb: Import AX_CXX_COMPILE_STDCXX from the GNU Autoconf Archive Pedro Alves
2016-10-13  0:45                                     ` [PATCH 2/2] gdb: Enable C++11 if available Pedro Alves
2016-10-12  9:37                               ` [PATCH 1/3] Introduce gdb::unique_ptr Pedro Alves
2016-10-12 10:51                                 ` Eli Zaretskii
2016-10-12 11:15                                   ` Pedro Alves
2016-10-12 11:40                                     ` Eli Zaretskii
2016-10-12 11:45                                   ` Jan Kratochvil
2016-10-12 11:56                                     ` Luis Machado
2016-10-12 12:03                                     ` Eli Zaretskii
2016-10-13  9:07                                       ` Jan Kratochvil
2016-10-13 10:07                                         ` Eli Zaretskii
2016-10-13 10:27                                           ` Pedro Alves
2016-10-13 13:22                                             ` Eli Zaretskii
2016-10-13 13:36                                               ` Pedro Alves
2016-10-13 13:59                                                 ` Eli Zaretskii
2016-10-13 14:04                                                   ` Pedro Alves
2016-10-13 15:06                                                     ` Joel Brobecker
2016-10-13 10:46                                           ` Jan Kratochvil
2016-10-13 11:15                                             ` Pedro Alves
2016-10-13 13:28                                             ` Eli Zaretskii
2016-10-13 13:42                                               ` Pedro Alves
2016-10-13 14:07                                                 ` Eli Zaretskii
2016-10-11 19:23                       ` Simon Marchi
2016-10-11 20:54                         ` Eli Zaretskii
2016-10-11 21:28                           ` Simon Marchi
2016-10-12  6:23                             ` Eli Zaretskii
2016-10-11 21:16                         ` Jan Kratochvil
2016-10-11 17:15                 ` Luis Machado
2016-10-11 18:21                   ` Pedro Alves
2016-10-10 16:58 ` [PATCH 0/3] More cleanup elimination / gdb::unique_ptr Pedro Alves
2016-10-16  7:05   ` Tom Tromey
2016-10-17 13:57     ` Pedro Alves
2016-10-17 14:07       ` Tom Tromey
2016-10-17 14:59         ` Pedro Alves
2016-10-20 13:46   ` Pedro Alves

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