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util: ilog2

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Matheus
2023-07-16 21:43:22 -03:00
parent f3714b83c8
commit cf858a87fc
1 changed files with 4 additions and 0 deletions
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kernel-src/include/util.h
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@@ -8,4 +8,8 @@ static inline long abs(long x) {
return x < 0 ? -x : x;
}
static inline long ilog2(long x) {
return sizeof(long) * 8 - __builtin_clz(x) - 1;
}
#endif