Adaptors
Explore how to use iterator adaptors in C++ to insert elements into containers at different positions and to interact with streams. Understand front, back, and general insert iterators along with stream iterators for input and output, enhancing your ability to manipulate data efficiently in standard containers.
We'll cover the following...
Iterator adaptors enable the use of iterators in insert mode or with streams. They need the header <iterator>.
Insert iterators
With the three insert iterators std::front_inserter, std::back_inserter, and std::inserter, we can insert an element into a container at the beginning, at the end or an arbitrary position respectively. The memory for the elements will be automatically provided. All of these insert iterators map their functionality on the underlying methods of the container cont.
The table below gives us two pieces of information: Which methods of the containers are internally used and which iterators can be used depending on the container’s type. ...