std::list<T,Allocator>::insert
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| (1) | ||
|   iterator insert( iterator pos, const T& value );  | 
(until C++11) | |
|   iterator insert( const_iterator pos, const T& value );  | 
(since C++11) | |
|   iterator insert( const_iterator pos, T&& value );  | 
(2) | (since C++11) | 
| (3) | ||
|   void insert( iterator pos, size_type count, const T& value );  | 
(until C++11) | |
|   iterator insert( const_iterator pos, size_type count, const T& value );  | 
(since C++11) | |
| (4) | ||
|   template< class InputIt > void insert( iterator pos, InputIt first, InputIt last);  | 
(until C++11) | |
|   template< class InputIt > iterator insert( const_iterator pos, InputIt first, InputIt last );  | 
(since C++11) | |
|   iterator insert( const_iterator pos, std::initializer_list<T> ilist );  | 
(5) | (since C++11) | 
Inserts elements at the specified location in the container.
1-2) inserts 
value before pos3) inserts 
count copies of the value before pos4) inserts elements from range 
The behavior is undefined if 
[first, last) before pos. 
 This overload has the same effect as overload (3) if InputIt is an integral type. | 
(until C++11) | 
This overload only participates in overload resolution if InputIt qualifies as LegacyInputIterator, to avoid ambiguity with the overload (3). | 
(since C++11) | 
first and last are iterators into *this. 5) inserts elements from initializer list 
ilist before pos.No iterators or references are invalidated.
Parameters
| pos | - |   iterator before which the content will be inserted. pos may be the end() iterator
 | 
| value | - | element value to insert | 
| first, last | - | the range of elements to insert, can't be iterators into container for which insert is called | 
| ilist | - | initializer list to insert the values from | 
| Type requirements | ||
 -T must meet the requirements of CopyInsertable in order to use overload (1).
 | ||
 -T must meet the requirements of MoveInsertable in order to use overload (2).
 | ||
 -T must meet the requirements of CopyAssignable and CopyInsertable in order to use overload (3).
 | ||
 -T must meet the requirements of EmplaceConstructible in order to use overload (4,5).
  | ||
Return value
1-2) Iterator pointing to the inserted 
value3) Iterator pointing to the first element inserted, or 
pos if count==0.4) Iterator pointing to the first element inserted, or 
pos if first==last.5) Iterator pointing to the first element inserted, or 
pos if ilist is empty.Complexity
1-2) Constant.
3) Linear in count
4) Linear in std::distance(first, last)
5) Linear in ilist.size()
Exceptions
If an exception is thrown, there are no effects (strong exception guarantee).
See also
|    (C++11)  | 
   constructs element in-place   (public member function)  | 
|    inserts an element to the beginning  (public member function)  | |
|    adds an element to the end  (public member function)  |