25 lines
715 B
C++
25 lines
715 B
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "td/utils/FlatHashTable.h"
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#include "td/utils/bits.h"
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#include "td/utils/Random.h"
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namespace td {
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namespace detail {
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uint32 normalize_flat_hash_table_size(uint32 size) {
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return td::max(static_cast<uint32>(1) << (32 - count_leading_zeroes32(size)), static_cast<uint32>(8));
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}
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uint32 get_random_flat_hash_table_bucket(uint32 bucket_count_mask) {
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return Random::fast_uint32() & bucket_count_mask;
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}
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} // namespace detail
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} // namespace td
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