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From: Junio C Hamano <gitster@pobox•com>
To: Jeff King <peff@peff•net>
Cc: git@vger•kernel.org
Subject: Re: [PATCH 1/2] strbuf: add xstrdup_fmt helper
Date: Thu, 19 Jun 2014 09:49:41 -0700	[thread overview]
Message-ID: <xmqq38f0j13u.fsf@gitster.dls.corp.google.com> (raw)
In-Reply-To: <20140619090532.GB1009@sigill.intra.peff.net> (Jeff King's message of "Thu, 19 Jun 2014 05:05:32 -0400")

Jeff King <peff@peff•net> writes:

> On Wed, Jun 18, 2014 at 03:32:08PM -0700, Junio C Hamano wrote:
>
>> >   str = xstrdup_fmt(fmt, some, args);
>> > ---
>> > I'm open to suggestions on the name. This really is the same thing
>> > conceptually as the GNU asprintf(), but the interface is different (that
>> > function takes a pointer-to-pointer as an out-parameter, and returns the
>> > number of characters return).
>> 
>> Naming it with anything "dup" certainly feels wrong.  The returned
>> string is not a duplicate of anything.
>
> I was somewhat inspired by "mkpathdup" and friends.

That name is from "mkpath gives its result in a static buffer and
forces the callers to xstrdup() if they want to keep the result;
this is a thin wrapper to do so for the caller".  As there is no
str_fmt() that gives its result in a static, so...

> I considered that, but I do find asprintf's interface unnecessarily
> annoying...

Yes, it is annoying.

> Would it be crazy to just call it xprintf? By our current scheme that
> would be "a wrapper for printf", which means it is potentially
> confusing.
>
> Literally any other unused letter would be fine. dprintf for detach? I
> dunno.

If we twist the logic behind the 'mkpathdup' name a little bit,
perhaps we can call it sprintf_dup or something.  That is, "sprintf
wants a fixed preallocated piece of memory to print into, and we
relieve the callers of having to do so", perhaps?

dprintf, mprintf, etc. are also fine by me.

  reply	other threads:[~2014-06-19 16:49 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-18 20:00 [PATCH 0/2] dropping manual malloc calculations Jeff King
2014-06-18 20:01 ` [PATCH 1/2] strbuf: add xstrdup_fmt helper Jeff King
2014-06-18 22:32   ` Junio C Hamano
2014-06-19  9:05     ` Jeff King
2014-06-19 16:49       ` Junio C Hamano [this message]
2014-06-19 21:16         ` [PATCH v2] dropping manual malloc calculations Jeff King
2014-06-19 21:18           ` [PATCH v2 01/10] strbuf: add xstrfmt helper Jeff King
2014-06-19 21:19           ` [PATCH v2 02/10] use xstrfmt in favor of manual size calculations Jeff King
2014-06-19 21:19           ` [PATCH v2 03/10] use xstrdup instead of xmalloc + strcpy Jeff King
2014-06-19 21:24           ` [PATCH v2 04/10] use xstrfmt to replace xmalloc + sprintf Jeff King
2014-06-19 21:26           ` [PATCH v2 05/10] use xstrfmt to replace xmalloc + strcpy/strcat Jeff King
2014-06-19 21:28           ` [PATCH v2 06/10] setup_git_env: use git_pathdup instead of xmalloc + sprintf Jeff King
2014-06-23 10:21             ` Eric Sunshine
2014-06-23 22:43               ` Junio C Hamano
2014-06-24 13:02               ` Duy Nguyen
2014-06-24 13:30             ` Duy Nguyen
2014-06-24 20:58               ` Jeff King
2014-06-25 12:37                 ` Duy Nguyen
2014-06-25 17:20                 ` Junio C Hamano
2014-06-25 17:22                   ` Jeff King
2014-06-25 19:54                     ` Junio C Hamano
2014-06-19 21:28           ` [PATCH v2 07/10] sequencer: use argv_array_pushf Jeff King
2014-06-19 21:29           ` [PATCH v2 08/10] merge: use argv_array when spawning merge strategy Jeff King
2014-06-19 21:29           ` [PATCH v2 09/10] walker_fetch: fix minor memory leak Jeff King
2014-06-19 21:30           ` [PATCH v2 10/10] unique_path: fix unlikely heap overflow Jeff King
2014-06-19 16:52       ` [PATCH 1/2] strbuf: add xstrdup_fmt helper René Scharfe
2014-06-18 20:02 ` [PATCH 2/2] use xstrdup_fmt in favor of manual size calculations Jeff King

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