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10.46.37 memalignment ¶

ISO C23 specification:
https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3220.pdf section 7.24.9.1

Gnulib module: —

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

• This function is missing on most non-C23 platforms: glibc 2.41, macOS 14, FreeBSD 14.0, NetBSD 10.0, OpenBSD 7.5, Minix 3.3.0, AIX 7.3.1, HP-UX 11.31, Solaris 11.4, Cygwin 3.5.3, mingw, MSVC 14, Android 9.0.

To check whether a pointer P has alignment A, Gnulib code typically tests (uintptr_t) P % A instead of memalignment (P) % A. See Other portability assumptions made by Gnulib.