Function getUniqueId

src/SFML/Graphics/Font.cpp:91–96

Thread-safe unique identifier generator

// Thread-safe unique identifier generator
std::uint64_t getUniqueId() noexcept
{
    static std::atomic<std::uint64_t> id(1); // start at 1, zero is "no font"

    return id.fetch_add(1);
}
} // namespace