uuid.cpp

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/*
 * Copyright (C) 2023  Christopher J. Howard
 *
 * This file is part of Antkeeper source code.
 *
 * Antkeeper source code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Antkeeper source code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Antkeeper source code.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include <engine/utility/uuid.hpp>
#include <cstdint>
 
std::string uuid::string() const
{
    static const char* hex = "0123456789abcdef";
    
    std::string str(32, '0');
    
    char* c = str.data();
    for (std::byte byte: data)
    {
        *(c++) = hex[static_cast<std::uint8_t>(byte) >> 4];
        *(c++) = hex[static_cast<std::uint8_t>(byte) & 15];
    }
    
    return str;
}
 
std::ostream& operator<<(std::ostream& os, const uuid& id)
{
    os << id.string();
    return os;
}