Namespaces
Variants
Views
Actions

std::deque::emplace_front

From cppreference.com
< cpp‎ | container‎ | deque
template< class... Args >
void emplace_front( Args&&... args );
(since C++11)

Inserts a new element to the beginning of the container. The element is constructed through std::allocator_traits::construct, which typically uses placement-new to construct the element in-place at the location provided by the container. The arguments args... are forwarded to the constructor as std::forward<Args>(args)....


Contents

[edit] Parameters

args - arguments to forward to the constructor of the element
Type requirements
-
T (the container's element type) must meet the requirements of EmplaceConstructible.

[edit] Return value

(none)

[edit] Complexity

Constant.

[edit] Exceptions

If an exception is thrown, this function has no effect (strong exception guarantee).

[edit] See also

inserts elements to the beginning
(public member function) [edit]