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C++ Standard Template Library

The C++ STL (Standard Template Library) is a generic collection of class templates and algorithms that allow programmers to easily implement standard data structures like queues, lists, and stacks.

The C++ STL provides programmers with the following constructs, grouped into three categories:

The idea behind the C++ STL is that the hard part of using complex data structures has already been completed. If a programmer would like to use a stack of integers, all that she has to do is use this code:

stack<int> myStack;

With minimal effort, she can now push() and pop() integers onto this stack. Through the magic of C++ Templates, she could specify any data type, not just integers. The STL Stack class will provide generic functionality of a stack, regardless of the data in the stack.