From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: "René Scharfe" <l.s.r@web.de>
Cc: Git List <git@vger.kernel.org>, Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH 1/5] add SWAP macro
Date: Mon, 30 Jan 2017 16:39:38 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.20.1701301637570.3469@virtualbox> (raw)
In-Reply-To: <0bdb58a6-3a7f-2218-4b70-c591ae90e95e@web.de>
[-- Attachment #1: Type: text/plain, Size: 543 bytes --]
Hi René,
On Sat, 28 Jan 2017, René Scharfe wrote:
> Add a macro for exchanging the values of variables. It allows users to
> avoid repetition and takes care of the temporary variable for them. It
> also makes sure that the storage sizes of its two parameters are the
> same. Its memcpy(1) calls are optimized away by current compilers.
How certain are we that "current compilers" optimize that away? And about
which "current compilers" are we talking? GCC? GCC 6? Clang? Clang 3?
Clang 3.8.*? Visual C 2005+?
Ciao,
Dscho
next prev parent reply other threads:[~2017-01-30 15:41 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-28 21:13 [PATCH 0/5] introduce SWAP macro René Scharfe
2017-01-28 21:38 ` [PATCH 1/5] add " René Scharfe
2017-01-30 15:39 ` Johannes Schindelin [this message]
2017-01-30 16:48 ` René Scharfe
2017-01-30 20:48 ` Johannes Schindelin
2017-01-30 21:46 ` René Scharfe
2017-01-31 12:13 ` Johannes Schindelin
2017-01-31 21:02 ` René Scharfe
2017-02-01 0:44 ` Ramsay Jones
2017-02-01 11:39 ` Johannes Schindelin
2017-01-30 16:01 ` Johannes Schindelin
2017-01-30 16:59 ` René Scharfe
2017-01-30 18:41 ` Johannes Sixt
2017-01-30 21:03 ` Johannes Schindelin
2017-01-30 22:09 ` René Scharfe
2017-01-30 22:21 ` Brandon Williams
2017-01-31 21:03 ` René Scharfe
2017-01-31 21:35 ` Jeff King
2017-01-31 22:29 ` Junio C Hamano
2017-01-31 22:36 ` Jeff King
2017-02-01 11:28 ` Johannes Schindelin
2017-02-01 11:47 ` Jeff King
2017-02-01 18:06 ` René Scharfe
2017-02-01 18:33 ` Junio C Hamano
2017-02-07 22:04 ` René Scharfe
2017-02-07 22:30 ` Junio C Hamano
2017-02-08 15:14 ` Johannes Schindelin
2017-01-31 12:03 ` Johannes Schindelin
2017-04-24 11:29 ` Jeff King
2017-04-24 11:49 ` Jeff King
2017-04-24 13:13 ` Duy Nguyen
2017-04-28 17:04 ` René Scharfe
2017-04-28 21:49 ` Jeff King
2017-04-29 18:16 ` René Scharfe
2017-04-30 3:11 ` Jeff King
2017-05-02 5:29 ` René Scharfe
2017-01-28 21:40 ` [PATCH 2/5] apply: use " René Scharfe
2017-01-28 21:40 ` [PATCH 3/5] " René Scharfe
2017-01-30 16:03 ` Johannes Schindelin
2017-01-30 17:18 ` René Scharfe
2017-01-30 22:22 ` Junio C Hamano
2017-01-31 21:02 ` René Scharfe
2017-01-28 21:41 ` [PATCH 4/5] diff: " René Scharfe
2017-01-30 16:04 ` Johannes Schindelin
2017-01-30 17:26 ` René Scharfe
2017-01-30 22:22 ` Junio C Hamano
2017-01-28 21:42 ` [PATCH 5/5] graph: " René Scharfe
2017-01-30 16:16 ` Johannes Schindelin
2017-01-30 17:41 ` René Scharfe
2017-01-30 23:20 ` [PATCH 0/5] introduce " Junio C Hamano
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