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add make_align for size alignment

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木头云 2021-05-07 15:41:32 +08:00 committed by GitHub
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commit d6ab58fc6f
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src/libipc/utility/utility.h
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@ -53,4 +53,9 @@ T horrible_cast(U val) {
return u.out;
}
IPC_CONSTEXPR_ std::size_t make_align(std::size_t align, std::size_t size) {
// align must be 2^n
return (size + align - 1) & ~(align - 1);
}
} // namespace ipc