Function copy_construct_from

src/fl/stl/variant.h:241–249

–– copy‐construct via table

    // –– copy‐construct via table
    void copy_construct_from(const variant &other) FL_NOEXCEPT {
        using Fn = void (*)(void *, const variant &);
        FL_DISABLE_WARNING_PUSH
        FL_DISABLE_WARNING(array-bounds)
        static constexpr Fn table[] = {&variant::template copy_fn<Types>...};
        table[other._tag - 1](&_storage, other);
        FL_DISABLE_WARNING_POP
        _tag = other._tag;
    }

    template <typename T>
    static void copy_fn(void *storage, const variant &other) FL_NOEXCEPT {