Method fill

src/prevector.h:162–164

    const T* item_ptr(difference_type pos) const { return is_direct() ? direct_ptr(pos) : indirect_ptr(pos); }

    void fill(T* dst, ptrdiff_t count, const T& value = T{}) {
        std::fill_n(dst, count, value);
    }

    template <std::input_iterator InputIterator>
    void fill(T* dst, InputIterator first, InputIterator last) {