26     T data_[N];  variable
34     constexpr iterator begin() { return data_; }  in begin()
35     constexpr iterator end() { return data_ + size_; }  in end()
36     constexpr const_iterator begin() const { return data_; }  in begin()
37     constexpr const_iterator end() const { return data_ + size_; }  in end()
39     constexpr const T& front() const { assert(size_ >= 1); return data_[0]; }  in front()
40     constexpr const T& back() const { assert(size_ >= 1); return data_[size_-1]; }  in back()
43         int i = static_cast<int>(pos - data_);  in insert()
45             std::move_backward(data_ + i, data_ + size_, data_ + size_ + 1);  in insert()
47         data_[i] = std::move(t);  in insert()
49         return data_ + i;  in insert()