C++ Program to Add two numbers using function template

By | 05.01.2017

Add two numbers using function template


Write a C++ Program to Add two numbers using function template. Here’s a Simple C++ Program to Add two numbers using function template in C++ Programming Language.


What are Templates in C++ ?


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>..


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
}


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

{
.
.
.
}


Below is the source code for C++ Program to Add two numbers using function template which is successfully compiled and run on Windows System to produce desired output as shown below :


SOURCE CODE : :


/*  C++ Program to Add two numbers using function template  */

#include <iostream>
using namespace std;

template<class t1,class t2>
void sum(t1 a,t2 b) // defining template function
{
    cout<<"\nSum="<<a+b<<endl;
}

int main()
{
    int a,b;
    float x,y;
    cout<<"\nEnter two integer data: ";
    cin>>a>>b;
    cout<<"\nEnter two float data: ";
    cin>>x>>y;
    sum(a,b); // adding two integer type data
    sum(x,y); // adding two float type data
    sum(a,x); // adding a float and integer type data
    return 0;
}

OUTPUT : :


/*  C++ Program to Add two numbers using function template  */


Enter two integer data: 2 4

Enter two float data: 3.4 6.8

Sum=6

Sum=10.2

Sum=5.4

Process returned 0

Above is the source code and output for C++ Program to Add two numbers using function template which is successfully compiled and run on Windows System to produce desired output.

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