reallocarray() is now part of POSIX

reallocarray() is now part of POSIX

[Kalevi Kolttonen]

Hello!

The man page for 'reallocarray' claims this function
is not standardized. However, it is now part of POSIX.

FreeBSD 15 man page says:

  reallocarray() conforms to IEEE Std 1003.1-2024 (“POSIX.1”).

br,
KK

Re: reallocarray() is now part of POSIX

[Alejandro Colomar]

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On 2026-05-15T00:14:10+0300, Kalevi Kolttonen wrote:
> Hello!

Hi!

> The man page for 'reallocarray' claims this function
> is not standardized. However, it is now part of POSIX.

You probably have an old version of the manual page.  The current manual
page documents POSIX.1-2024:

	$ man -w reallocarray \
		| MANWIDTH=64 xargs mansectf STANDARDS \
		| head -n11;
	malloc(3)           Library Functions Manual          malloc(3)

	STANDARDS
	     malloc()
	     free()
	     calloc()
	     realloc()
		    C23, POSIX.1‐2024.

	     reallocarray()
		    POSIX.1‐2024.

This was documented in
b9ebd195 (2025-07-20; "man/man3/malloc.3: STANDARDS, HISTORY, BUGS: Clarify (non)conformance of realloc{,array}(3)").

That commit was part of man-pages-6.15:

	$ git describe --contains b9ebd195
	man-pages-6.15~1

Which was released 10 months ago:

	tag man-pages-6.15
	Tagger: Alejandro Colomar <alx@kernel.org>
	Date:   2025-07-20 23:49:35 +0200

	man-pages-6.15 - manual pages for GNU/Linux
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Have a lovely night!
Alex

> FreeBSD 15 man page says:
> 
>   reallocarray() conforms to IEEE Std 1003.1-2024 (“POSIX.1”).
> 
> br,
> KK
> 

-- 
<https://www.alejandro-colomar.es>

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Re: reallocarray() is now part of POSIX

[Kalevi Kolttonen]

On Thu, May 14, 2026 at 11:29:40PM +0200, Alejandro Colomar wrote:
> You probably have an old version of the manual page.  The current manual
> page documents POSIX.1-2024:

You are quite right! Fedora 44 has man-pages 6.13-3. I am very
surprised that they do not ship the latest man pages because
usually the latest Fedora is well up-to-date.

Thanks for the info! I guess I should contact Fedora about this.

br,
KK

Re: reallocarray() is now part of POSIX

[Alejandro Colomar]

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Hi Kalevi,

On 2026-05-15T00:38:16+0300, Kalevi Kolttonen wrote:
> On Thu, May 14, 2026 at 11:29:40PM +0200, Alejandro Colomar wrote:
> > You probably have an old version of the manual page.  The current manual
> > page documents POSIX.1-2024:
> 
> You are quite right! Fedora 44 has man-pages 6.13-3. I am very
> surprised that they do not ship the latest man pages because
> usually the latest Fedora is well up-to-date.
> 
> Thanks for the info! I guess I should contact Fedora about this.

I contacted Carlos recently.  They seem to be finishing the packaging of
the lastest release.  I expect they'll finish in few weeks.


Cheers,
Alex

> 
> br,
> KK
> 

-- 
<https://www.alejandro-colomar.es>

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