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util: add util_is_aligned()

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28568>
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Samuel Pitoiset 2024-04-04 13:19:37 +02:00 • committed by Marge Bot
parent 5cc3258533
commit 81e3c46d06
1 changed files with 11 additions and 0 deletions
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11
src/util/u_math.h
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@ -808,6 +808,17 @@ util_clamped_uadd(unsigned a, unsigned b)
return res;
}
/**
* Checks the value 'n' is aligned to 'a'.
* The alignment must be a power of two.
*/
static inline bool
util_is_aligned(uintmax_t n, uintmax_t a)
{
assert(a == (a & -a));
return (n & (a - 1)) == 0;
}
#ifdef __cplusplus
}
#endif