std::list<T,Allocator>::emplace_front
From cppreference.com
| template< class... Args > void emplace_front( Args&&... args ); |
(since C++11) (until C++17) |
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template< class... Args > reference emplace_front( Args&&... args ); |
(since C++17) (constexpr since C++26) |
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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.
Contents |
[edit] Parameters
| args | - | arguments to forward to the constructor of the element |
| Type requirements | ||
-If T is not EmplaceConstructible into list from args..., the behavior is undefined.
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[edit] Return value
| (none) | (until C++17) |
| A reference to the inserted element. | (since C++17) |
[edit] Complexity
Constant.
[edit] Exceptions
If an exception is thrown for any reason, this function has no effect (strong exception safety guarantee).
[edit] See also
| inserts an element to the beginning (public member function) |
