std::list<T,Allocator>::emplace_front (3) - Linux Man Pages

std::list<T,Allocator>::emplace_front: std::list<T,Allocator>::emplace_front

NAME

std::list<T,Allocator>::emplace_front - std::list<T,Allocator>::emplace_front

Synopsis


template< class... Args > (since C++11)
void emplace_front( Args&&... args ); (until C++17)
template< class... Args > (since C++17)
reference emplace_front( Args&&... args );


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)....
No iterators or references are invalidated.

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.

Return value


(none) (until C++17)
A reference to the inserted element. (since C++17)

Complexity


Constant.

Exceptions


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

See also


           inserts an element to the beginning
push_front (public member function)