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include/nuttx.h: add common align definitions for nuttx

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Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
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wangmingrong1 2024-09-14 11:29:03 +08:00 committed by Xiang Xiao
parent 430820e7ec
commit b7d5a30f85
1 changed files with 22 additions and 0 deletions
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22
include/nuttx/nuttx.h
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@ -33,6 +33,28 @@
* Pre-processor Definitions
****************************************************************************/
/* Align definitions */
#ifndef ALIGN_MASK
# define ALIGN_MASK(s) ((1 << (s)) - 1)
#endif
#ifndef ALIGN_UP
# define ALIGN_UP(x,a) (((x) + ((a) - 1)) & ~((a) - 1))
#endif
#ifndef ALIGN_UP_MASK
# define ALIGN_UP_MASK(x,m) (((x) + (m)) & ~(m))
#endif
#ifndef ALIGN_DOWN
# define ALIGN_DOWN(x,a) ((x) & (~((a) - 1)))
#endif
#ifndef ALIGN_DOWN_MASK
# define ALIGN_DOWN_MASK(x,m) ((x) & ~(m))
#endif
/* Name: container_of
*
* Description: