From: Pedro Alves <palves@redhat.com>
To: Trevor Saunders <tbsaunde@tbsaunde.org>, Tom Tromey <tom@tromey.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [RFA 1/5] Remove some ui_out-related cleanups from Python
Date: Wed, 08 Feb 2017 22:27:00 -0000 [thread overview]
Message-ID: <80382c98-bdc1-fafd-2825-76f8d6fc24f7@redhat.com> (raw)
In-Reply-To: <c0a70339-49c3-a087-bebf-ecfdd2cc32ca@redhat.com>
On 02/08/2017 05:28 PM, Pedro Alves wrote:
> I wondered about making m_instantiated a char, so that optional<T> would
> pack even better when sizeof or alignof T is small, and thus ends up being
> no cost in those cases space-wise. Though maybe that ends up being
> worse / not so efficient generated code -wise, or GCC would do it too?
> In any case, since GCC doesn't do that, if/when we ever move to C++17,
> we'd lose that again anyway.
Eh, now that I check I see that sizeof bool == 1, and looking at GCC's sources,
I see it's like that for almost all ports. Somehow I misremembered
this and thought it was sizeof(int).
Thanks,
Pedro Alves
next prev parent reply other threads:[~2017-02-08 22:27 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-15 13:43 [RFA 0/5] more cleanup removal in Python Tom Tromey
2017-01-15 13:43 ` [RFA 1/5] Remove some ui_out-related cleanups from Python Tom Tromey
2017-01-15 21:52 ` Simon Marchi
2017-01-16 16:13 ` Tom Tromey
2017-01-16 11:19 ` Trevor Saunders
2017-02-08 17:28 ` Pedro Alves
2017-02-08 22:27 ` Pedro Alves [this message]
2017-02-08 23:05 ` Tom Tromey
2017-02-08 23:52 ` Pedro Alves
2017-02-09 4:34 ` Matt Rice
2017-02-09 12:48 ` Pedro Alves
2017-02-09 12:51 ` Pedro Alves
2017-02-09 15:46 ` Matt Rice
2017-02-09 16:04 ` Simon Marchi
2017-02-10 6:47 ` Trevor Saunders
2017-01-15 13:43 ` [RFA 4/5] Change one more spot to use gdbpy_ref Tom Tromey
2017-02-09 12:52 ` Pedro Alves
2017-01-15 13:43 ` [RFA 3/5] Introduce gdbpy_subclass and use it to simplify some logic Tom Tromey
2017-01-24 20:21 ` Simon Marchi
2017-02-09 11:44 ` Pedro Alves
2017-02-09 18:52 ` Tom Tromey
2017-02-09 13:00 ` Pedro Alves
2017-01-15 13:43 ` [RFA 5/5] Remove some gotos from Python Tom Tromey
2017-02-09 13:03 ` Pedro Alves
2017-01-15 13:43 ` [RFA 2/5] Introduce ui_file_up and use it to remove cleanups Tom Tromey
2017-01-16 9:59 ` Trevor Saunders
2017-01-16 17:58 ` Pedro Alves
2017-01-16 19:08 ` Tom Tromey
2017-01-17 1:40 ` Pedro Alves
2017-01-17 19:05 ` Tom Tromey
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