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# std::deque::push_front

From cppreference.com
< cpp‎ | container‎ | deque

[edit template]

void push_front( const T& value ); |  |
void push_front( T&& value ); |  | (since C++11)

Prepends the given element `value` to the beginning of the container.

All iterators, including the past-the-end iterator, are invalidated. No references are invalidated.

### [edit] Parameters

value | - | the value of the element to prepend

### [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

emplace_front (C++11) | constructs elements in-place at the beginning (public member function) [edit]
push_back | adds elements to the end (public member function) [edit]
pop_front | removes the first element (public member function) [edit]

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