23 Containers library [containers]

23.3 Sequence containers [sequences]

23.3.8 Class template deque [deque]

23.3.8.2 deque constructors, copy, and assignment [deque.cons]

explicit deque(const Allocator&);

Effects: Constructs an empty deque, using the specified allocator.

Complexity: Constant.

explicit deque(size_type n, const Allocator& = Allocator());

Effects: Constructs a deque with n default-inserted elements using the specified allocator.

Requires: T shall be DefaultInsertable into *this.

Complexity: Linear in n.

deque(size_type n, const T& value, const Allocator& = Allocator());

Effects: Constructs a deque with n copies of value, using the specified allocator.

Requires: T shall be CopyInsertable into *this.

Complexity: Linear in n.

template <class InputIterator> deque(InputIterator first, InputIterator last, const Allocator& = Allocator());

Effects: Constructs a deque equal to the range [first, last), using the specified allocator.

Complexity: Linear in distance(first, last).