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NAME |SYNOPSIS |DESCRIPTION |VERSIONS |STANDARDS |HISTORY |CAVEATS |COLOPHON | |
gnu::aligned(3attr)gnu::aligned(3attr)gnu::aligned - set alignment of an object
[[gnu::aligned(alignment)]][[gnu::aligned]]
This attribute can be applied to a type or a variable, and sets itsalignment in bytes. If thealignment is not specified, the maximum alignment is used. This is equivalent to [[gnu::aligned(alignof(max_align_t))]]
__attribute__((aligned(alignment)))__declspec(align(alignment)) C11 provides the_Alignas() type specifier, which has similar semantics.
GNU.
gcc, g++, clang 11, clang++ 2.8.0.
This attribute can increase the natural alignment of a type, but it can't decrease it. The linker may limit the maximum alignment that can be applied.
This page is part of theman-pages (Linux kernel and C library user-space interface documentation) project. Information about the project can be found at ⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report for this manual page, see ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩. This page was obtained from the tarball man-pages-6.15.tar.gz fetched from ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on 2025-08-11. If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up- to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which isnot part of the original manual page), send a mail to man-pages@man7.orgLinux man-pages 6.15 2025-06-28gnu::aligned(3attr)HTML rendering created 2025-09-06 byMichael Kerrisk, author ofThe Linux Programming Interface. For details of in-depthLinux/UNIX system programming training courses that I teach, lookhere. Hosting byjambit GmbH. | |