Adam Macdonald
a8d8b9b9ab
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40 lines
760 B
C++
40 lines
760 B
C++
#pragma once
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#include "random/random.hpp"
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#include <cstddef> // For size_t
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#include <cstdint> // For uint64_t
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namespace kuiper
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{
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class UUID {
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public:
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UUID()
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: m_uuid(Random::Instance().next_u64()) {}
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UUID(const std::uint64_t uuid)
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: m_uuid(uuid) {}
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UUID(const UUID&) = default;
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operator std::uint64_t() const {
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return m_uuid;
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}
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private:
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std::uint64_t m_uuid = 0;
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};
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} // namespace kuiper
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namespace std
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{
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template<typename T> struct hash;
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template<> struct hash<kuiper::UUID> {
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std::size_t operator()(const kuiper::UUID& uuid) const {
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// SURELY there won't be too many collisions with 2^64 possible combinations :^)
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return static_cast<uint64_t>(uuid);
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}
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};
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} // namespace std
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