Re: avoiding strdup()

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Sujet : Re: avoiding strdup()
De : Keith.S.Thompson+u (at) *nospam* gmail.com (Keith Thompson)
Groupes : comp.lang.c
Date : 10. Mar 2024, 02:37:19
Autres entêtes
Organisation : None to speak of
Message-ID : <87r0gizzuo.fsf@nosuchdomain.example.com>
References : 1 2 3 4 5 6 7 8
User-Agent : Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux)
vallor <vallor@cultnix.org> writes:
[...]
Meanwhile, saw someone in another group write:
>
char * something;
something = strdup("writable string etc.");
if( something == NULL ) { etc. }
>
But that won't work if --std=c99, does work for g99 and c2x.
The (Linux) man page says:
/* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L
>
I asked Google about it being a POSIX extension
added at that late date, and it gave me an answer
about the C standard:
>
"C9X London meeting update"
https://groups.google.com/g/comp.std.c/c/pMaEU_8Rb7w
 _ _ _ _ _
2. strsep and strdup are not being added. strsep() is out because
not enough people wanted it to vote it in; strdup() lost on the
grounds that it would be the *ONLY* function other than *alloc()
in the entire library whose return could be sanely passed to free(),
and this is surprising.
 _ _ _ _ _
>
Also: <https://stackoverflow.com/questions/32944390/what-is-the-rationale-
for-not-including-strdup-in-the-c-standard>
>
Anyway, pointed out that they can just use an initializer, something
about which I was clued in by a friendly person in this very group.
strdup() and strndup() are being added to the C23 standard.
--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for Medtronic
void Void(void) { Void(); } /* The recursive call of the void */

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9 Mar 24  i`* Re: [OT] UTF-8 sig. Was: "White House to Developers: Using C or C++ Invites Cybersecurity Risks"4Blue-Maned_Hawk
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10 Mar 24  i  `* Re: [OT] UTF-8 sig.2Blue-Maned_Hawk
21 Mar 24  i   `- Re: [OT] UTF-8 sig.1Anton Shepelev
9 Mar 24  `* Re: [OT] UTF-8 sig.44Ben
9 Mar 24   +* Re: [OT] UTF-8 sig.3Richard Harnden
10 Mar 24   i`* Re: [OT] UTF-8 sig.2Ben Bacarisse
10 Mar 24   i `- Re: [OT] UTF-8 sig.1Richard Harnden
9 Mar 24   +* Re: [OT] UTF-8 sig.7Blue-Maned_Hawk
9 Mar 24   i`* Re: [OT] UTF-8 sig.6Richard Harnden
10 Mar 24   i +- Re: [OT] UTF-8 sig.1Blue-Maned_Hawk
10 Mar 24   i `* Re: [OT] UTF-8 sig.4Ben Bacarisse
10 Mar 24   i  `* Re: [OT] UTF-8 sig.3Michael S
10 Mar 24   i   +- Re: [OT] UTF-8 sig.1Blue-Maned_Hawk
10 Mar 24   i   `- Re: [OT] UTF-8 sig.1Kaz Kylheku
9 Mar 24   `* avoiding strdup() (was: Re: [OT] UTF-8 sig.)33vallor
9 Mar 24    +- Re: avoiding strdup()1Spiros Bousbouras
10 Mar 24    +* Re: avoiding strdup()30Keith Thompson
10 Mar 24    i`* Re: avoiding strdup()29Michael S
10 Mar 24    i +- Re: avoiding strdup()1Blue-Maned_Hawk
10 Mar 24    i `* Re: avoiding strdup()27Kaz Kylheku
10 Mar 24    i  +- Re: avoiding strdup()1Richard Harnden
11 Mar 24    i  +* Re: avoiding strdup()22Malcolm McLean
11 Mar 24    i  i+* Re: avoiding strdup()10Michael S
11 Mar 24    i  ii+* Re: avoiding strdup()6Keith Thompson
11 Mar 24    i  iii+* Re: avoiding strdup()2Kaz Kylheku
11 Mar 24    i  iiii`- Re: avoiding strdup()1Keith Thompson
11 Mar 24    i  iii+- Re: avoiding strdup()1Keith Thompson
11 Mar 24    i  iii`* Re: avoiding strdup()2Spiros Bousbouras
11 Mar 24    i  iii `- Re: avoiding strdup()1Keith Thompson
11 Mar 24    i  ii`* Re: avoiding strdup()3Michael S
11 Mar 24    i  ii +- Re: avoiding strdup()1Michael S
11 Mar 24    i  ii `- Re: avoiding strdup()1Spiros Bousbouras
11 Mar 24    i  i+* Re: avoiding strdup()3Kaz Kylheku
11 Mar 24    i  ii`* Re: avoiding strdup()2Richard Kettlewell
11 Mar 24    i  ii `- Re: avoiding strdup()1Keith Thompson
12 Mar 24    i  i`* Re: avoiding strdup()8Malcolm McLean
12 Mar 24    i  i `* Re: avoiding strdup()7Keith Thompson
12 Mar 24    i  i  +* Re: avoiding strdup()3Malcolm McLean
13 Mar 24    i  i  i`* Re: avoiding strdup()2Keith Thompson
13 Mar 24    i  i  i `- Re: avoiding strdup()1Malcolm McLean
13 Mar 24    i  i  `* Re: avoiding strdup()3Malcolm McLean
13 Mar 24    i  i   `* Re: avoiding strdup()2James Kuyper
13 Mar 24    i  i    `- Re: avoiding strdup()1David Brown
29 Apr 24    i  `* Re: avoiding strdup()3Lawrence D'Oliveiro
29 Apr 24    i   `* Re: avoiding strdup()2i
1 May 24    i    `- Re: avoiding strdup()1steve
10 Mar 24    `- Re: avoiding strdup()1Richard Harnden

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