guid.h

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#pragma once
 
#include <string>
#include <optional>
#include <array>
 
namespace eu::core
{
    struct Guid
    {
        std::array<uint8_t, 16> data;
 
        Guid() = default;
        constexpr explicit Guid(std::array<uint8_t, 16> d)
            : data(std::move(d))
        {
        }
 
        [[nodiscard]] static std::optional<Guid> create();
        [[nodiscard]] static std::optional<Guid> parse(const std::string& str);
 
        [[nodiscard]] std::string to_string() const;
    };
 
    constexpr Guid nil_guid = Guid
    {
        std::array<uint8_t, 16>
        {
            0, 0, 0, 0,
            0, 0,
            0, 0,
            0, 0,
            0, 0, 0, 0, 0, 0
        }
    };
}