Standard Template library (STL) in C++

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           It has a set of pre-built classes and functions. Data’s need to store in some type data structures like vectors, stacks and maps. If your programming language gives the standard template library, it is efficient to programmers.

Features:

          STL has lot of benefits as follows…

  • ·      Reusability.
  • ·      Efficiency.
  • ·      Quick to execute.
  • ·      Pre-defined algorithms.

What are the components of STL?

          It has three types classified as follows.

Algorithms:

          It has a collection of functions which provides the common operations.

For example, sorting, searching, manipulating and updating on data. It uses the built in header files <numeric> and <algorithm>.

Sample algorithms are given below.

Sort : it sorts the data in ascending order.

Search:

Binary Search :it searches the data using binary search.

Find: it searches the data.

Manipulation:

Accumulate: it adds the elements.

Count: it gives you the occurrence of value in the range.

Reverse: it reverses the order of elements.

Unique: it eliminates the duplicate elements.

Lower bound:  it gives you the lower bound.

Upper bound: it returns the upper bound.

Updating:

Replace: it replace a value to other value in the given range.

Containers:

          It is the structure to store objects and data based on the requirements. Generally, container is created as template, the methods are executed over it.

It has four types.

Associative containers: it has set, multiset,map and multimap.

Unordered associated containers:all unordered types like set,map,multimap.

Container adaptors: stack,queue

Sequence containers: Array,list,Deque and vector.

Iterators:

 It points the memory addresses of STL containers. It’s like a pointer. It is defined in <iterator> header file.

These are the introduction about STL(Standard Template Library) in C++. Hope, this introduction is help to you. Keep Reading!!!

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