Robert Clausecker 6c57e368eb lib/libc: implement C23 memalignment() ...

This new function computes the alignment of a pointer.
It is part of ISO/IEC 9899:2024, the new C standard.
If the pointer is a null pointer, null is returned.
I have tried to write an implementation that can cope
with traditional address-based architectures, even if
size_t and uintptr_t are of different length.  Adjustments
may be needed for CHERI though.

A man page is provided, too.  No unit test for now.

Reviewed by:	kib, imp, ziaee (manpages), [email protected]
Approved by:	markj (mentor)
MFC after:	1 month
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D53673

2025-11-12 13:23:09 +01:00

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dirent.h

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string.h

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strings.h

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