Re: reallocarray() is now part of POSIX

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 <[email protected]>
	Date:   2025-07-20 23:49:35 +0200

	man-pages-6.15 - manual pages for GNU/Linux
	-----BEGIN PGP SIGNATURE-----

	iQIzBAABCgAdFiEES7Jt9u9GbmlWADAi64mZXMKQwqkFAmh9ZKwACgkQ64mZXMKQ
	wqnjPQ//db5f+yZ+Ew9mueXt7Mw8EY918/wGuiMZC31M/lNSywpFrczzsG+SLyMv
	QJwdK4ZJG62j5zA3eiFonpSsApxFPGb8aZhFlH/IjN5V0ilpxOKa9YfGKx150fi0
	l+uMNRl4dV3lK3EavOcHHClPwQDQ2qOxt+WTksMHGOusr2/y+MyMcHEkXkvQfQDr
	GeLvBumPLoxMM1tieGoXdSn6dx39eQAqQB1H/LhFejR+OX+bpVVfcDUWzH2HNXo4
	UaUxKMgY1QfFVy1Azjm45Zt/uz2br/PFJ4NdfawpNT/3qN9L3egTQeyMuSlOQZnI
	c8MGi0D2VIotvyGmewCKSta2Wx8VpTe9BY/iB+Afdt9urUkj+A6EPpacVOFJbWxG
	nMjIYJsEDhrwvjIwliC5YD6CIEmXYRk/xYmd4QXKu+82EAc1ttd5+aFdiAP8e1DL
	m77hABRDINTwFTQ5rq5VuSL9WqYhYSVzoM5rf3Y/AzyUaqeg/6peqSY8aMuDVc5X
	zXbrDK86/iDBPYiFIbNxS5iy/rlROxL1/UVzVSmmp+u5/u6tGkpBCDvPSoaP4XfW
	xzjwYsEJroTHtJ/X2f/Gib6Aovo5Cyut2t7Y0z1wbocJKWn0FlKHbNnPLFsxKr6B
	t8fzPTQql83qlvNqPJKQEPR+ZSshnZvWcRMwP3PUxq1LsApAWkA=
	=1+GK
	-----END PGP SIGNATURE-----


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>

-----BEGIN PGP SIGNATURE-----
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=8mLA
-----END PGP SIGNATURE-----