88 lines
2.5 KiB
Plaintext
88 lines
2.5 KiB
Plaintext
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#ifndef BOOST_UUID_DETAIL_UUID_GENERIC_IPP_INCLUDED
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#define BOOST_UUID_DETAIL_UUID_GENERIC_IPP_INCLUDED
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// Copyright 2024 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/uuid/detail/endian.hpp>
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#include <cstdint>
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#if defined(BOOST_UUID_REPORT_IMPLEMENTATION)
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#include <boost/config/pragma_message.hpp>
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BOOST_PRAGMA_MESSAGE( "Using uuid_generic.ipp" )
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#endif
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namespace boost {
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namespace uuids {
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inline bool uuid::is_nil() const noexcept
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{
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std::uint64_t v = detail::load_native_u64( this->data + 0 );
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std::uint64_t w = detail::load_native_u64( this->data + 8 );
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return v == 0 && w == 0;
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}
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inline void uuid::swap( uuid& rhs ) noexcept
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{
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std::uint64_t v1 = detail::load_native_u64( this->data + 0 );
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std::uint64_t w1 = detail::load_native_u64( this->data + 8 );
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std::uint64_t v2 = detail::load_native_u64( rhs.data + 0 );
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std::uint64_t w2 = detail::load_native_u64( rhs.data + 8 );
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detail::store_native_u64( this->data + 0, v2 );
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detail::store_native_u64( this->data + 8, w2 );
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detail::store_native_u64( rhs.data + 0, v1 );
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detail::store_native_u64( rhs.data + 8, w1 );
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}
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inline bool operator==( uuid const& lhs, uuid const& rhs ) noexcept
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{
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std::uint64_t v1 = detail::load_native_u64( lhs.data + 0 );
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std::uint64_t w1 = detail::load_native_u64( lhs.data + 8 );
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std::uint64_t v2 = detail::load_native_u64( rhs.data + 0 );
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std::uint64_t w2 = detail::load_native_u64( rhs.data + 8 );
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return v1 == v2 && w1 == w2;
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}
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inline bool operator<( uuid const& lhs, uuid const& rhs ) noexcept
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{
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std::uint64_t v1 = detail::load_big_u64( lhs.data + 0 );
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std::uint64_t w1 = detail::load_big_u64( lhs.data + 8 );
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std::uint64_t v2 = detail::load_big_u64( rhs.data + 0 );
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std::uint64_t w2 = detail::load_big_u64( rhs.data + 8 );
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return v1 < v2 || ( !( v2 < v1 ) && w1 < w2 );
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}
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#if defined(BOOST_UUID_HAS_THREE_WAY_COMPARISON)
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inline std::strong_ordering operator<=> (uuid const& lhs, uuid const& rhs) noexcept
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{
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std::uint64_t v1 = detail::load_big_u64( lhs.data + 0 );
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std::uint64_t w1 = detail::load_big_u64( lhs.data + 8 );
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std::uint64_t v2 = detail::load_big_u64( rhs.data + 0 );
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std::uint64_t w2 = detail::load_big_u64( rhs.data + 8 );
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if( v1 < v2 ) return std::strong_ordering::less;
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if( v1 > v2 ) return std::strong_ordering::greater;
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return w1 <=> w2;
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}
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#endif
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} // namespace uuids
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} // namespace boost
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#endif // BOOST_UUID_DETAIL_UUID_GENERIC_IPP_INCLUDED
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