C++ Program of Square Function using template specialization

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Templates are the foundation of generic programming, which involves writing code in a way that is independent of any particular type.

A template is a blueprint or formula for creating a generic class or a function. The library containers like iterators and algorithms are examples of generic programming and have been developed using template concept.

There is a single definition of each container, such as vector, but we can define many different kinds of vectors for example, vector <int> or vector <string>..

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Function Template :

The general form of a template function definition is shown here:

template <class type> ret-type func-name(parameter list)

{
// body of function
}

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Class Template :

Just as we can define function templates, we can also define class templates. The general form of a generic class declaration is shown here:

template <class type> class class-name

{
.
.
.
}

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Below is the source code for C++ Program of Square Function using template specialization which is successfully compiled and run on Windows System to produce desired output as shown below :

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SOURCE CODE : :

/*  C++ Program of Square Function using template specialization  */

#include <iostream>
using namespace std;

template <class T>
inline T square(T x)
{
   T result;
   result = x * x;
   return result;
};

// template specialization
template <>
string square<string>(string ss)
{
   return (ss+ss);
};

int main()
{
   int i = 2, ii;
   string ww("Aaa");

   ii = square<int>(i);
   cout << i << ": " << ii << endl;

    cout << square<string>(ww) << endl;
    return 0;
}

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OUTPUT : :

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/*  C++ Program of Square Function using template specialization  */

2: 4
AaaAaa

Process returned 0

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Above is the source code and output for C++ Program of Square Function using template specialization which is successfully compiled and run on Windows System to produce desired output.

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