std::deque<T,Allocator>::push_front
 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.
Parameters
| value | - | the value of the element to prepend | 
Return value
(none).
Complexity
Constant.
Exceptions
If an exception is thrown, this function has no effect (strong exception guarantee).
See also
|  
 (C++11)   |   constructs an element in-place at the beginning  (public member function)  | 
|  adds an element to the end  (public member function)  | 
|
|  removes the first element  (public member function)  | 
    © cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
    http://en.cppreference.com/w/cpp/container/deque/push_front