boost/bloom/multiblock.hpp

0001 /* Copyright 2025 Joaquin M Lopez Munoz.
0002  * Distributed under the Boost Software License, Version 1.0.
0003  * (See accompanying file LICENSE_1_0.txt or copy at
0004  * http://www.boost.org/LICENSE_1_0.txt)
0005  *
0006  * See https://www.boost.org/libs/bloom for library home page.
0007  */
0008
0009 #ifndef BOOST_BLOOM_MULTIBLOCK_HPP
0010 #define BOOST_BLOOM_MULTIBLOCK_HPP
0011
0012 #include <boost/bloom/detail/block_base.hpp>
0013 #include <boost/bloom/detail/block_ops.hpp>
0014 #include <boost/bloom/detail/multiblock_fpr_base.hpp>
0015 #include <boost/config.hpp>
0016 #include <boost/config/workaround.hpp>
0017 #include <cstddef>
0018 #include <cstdint>
0019
0020 namespace boost{
0021 namespace bloom{
0022
0023 template<typename Block,std::size_t K>
0024 struct multiblock:
0025   public detail::multiblock_fpr_base<K>,
0026   private detail::block_base<Block,K>
0027 {
0028   static constexpr std::size_t k=K;
0029   using value_type=Block[k];
0030
0031   /* NOLINTNEXTLINE(readability-redundant-inline-specifier) */
0032   static inline void mark(value_type& x,std::uint64_t hash)
0033   {
0034     std::size_t i=0;
0035     loop(hash,[&](std::uint64_t h){block_ops::set(x[i++],h&mask);});
0036   }
0037
0038 #if BOOST_WORKAROUND(BOOST_MSVC,<=1900)
0039 /* 'int': forcing value to bool 'true' or 'false' */
0040 #pragma warning(push)
0041 #pragma warning(disable:4800)
0042 #endif
0043
0044   /* NOLINTNEXTLINE(readability-redundant-inline-specifier) */
0045   static inline bool check(const value_type& x,std::uint64_t hash)
0046   {
0047     int res=1;
0048     std::size_t i=0;
0049     loop(hash,[&](std::uint64_t h){block_ops::reduce(res,x[i++],h&mask);});
0050     return res;
0051   }
0052
0053 #if BOOST_WORKAROUND(BOOST_MSVC,<=1900)
0054 #pragma warning(pop) /* C4800 */
0055 #endif
0056
0057 private:
0058   using super=detail::block_base<Block,K>;
0059   using super::mask;
0060   using super::loop;
0061   using block_ops=detail::block_ops<Block>;
0062 };
0063
0064 } /* namespace bloom */
0065 } /* namespace boost */
0066 #endif