More C++ Programs on Templates

More Programs on Templates

 

Example:

Write a function template for finding the minimum value contained in array.

Solution :

#include<iostream>

using namespace std;

template <class T>

T min(T a[10])

{

    T min;

    min=a[0];

    for(int i=0;i<5;i++)

    {

        if(a[i] <<min)

        {

            min=a[i];

        }

    }

return min;

}

int main()

{

    int a[10];

    int i;

    for(i=0;i<5;i++)

    {

        cout<<"Enter the integer values "<<endl;

        cin>>a[i];

    }

    cout<<"\n The minimum element of an array is: "<<min(a)<<endl;

    float b[10];

    for(i=0;i<5;i++)

    {

        cout<<"Enter the real values "<<endl;

        cin>>b[i];

    }

    cout<<"\n The minimum element of an array is: "<<min(b)<<endl;

    return 0;

}

Output

Enter the integer values

10

Enter the integer values

4

Enter the integer values

11

Enter the integer values

5

Enter the integer values

12

The minimum element of an array is: 4

Enter the real values

10.10

Enter the real values

5.5

Enter the real values

11.11

Enter the real values

6.6

Enter the real values

7.7

The minimum element of an array is: 5.5.

 

Example:2

Write a C++ program using class template for finding the scalar product for int type vector and float type vector.

Solution :

#include<iostream>

using namespace std;

template <class T>

class Scalar

{

Ta1, a2,a3,b1,b2,b3;

T ans;

public:

void GetData()

{

      cout<<"\n Enter the value of a bar: "<<endl;

      cout<<"\n Enter a1_ i:

      cin>>a1;

      cout<<"\n Enter a2_j: ";

      cin>>a2;

      cout<<"\n Enter a3_k: ";

      thobby cin>>a3;

      cout<<"\n Enter the value of b bar: "<<endl;

      cout<<"\n Enter b1_i: ";

      cin>>b1;

      cout<<"\n Enter b2_j: ";

      cin>>b2;

      cout<<"\n Enter b3_k: ";

      cin>>b3;

}

T Mul()

{

      T A,B,C;

      cout<<"\n The scalar product is: "<<endl;

      A=a1*b1;

      B=a2*b2;

      C=a3*b3;

      ans=A+B+C;

      return ans;

}

};

int main()

{

Scalar <int> obj1;

Scalar <float> obj2;

cout<<"\n Enter int type values"<<endl;

obj1.GetData();

cout<<obj1.Mul()<<endl;

cout<<"\n Enter float type values"<<endl;

obj2.GetData();

cout<<obj2.Mul()<<endl;

return 0;

}

Output

Enter int type values

Enter the value of a bar:

Enter a1_i: 1

Enter a2_j: 2

Enter a3_k: 3

Enter the value of b bar:

Enter b1_i: 4

Enter b2_j: 5

Enter b3_k: 6

The scalar product is: 32

Enter float type values

Enter the value of a bar:

Enter a1 i: 1.1

Enter a2_j: 2.2

Enter a3_k: 3.3

Enter the value of b bar:

Enter b1_i: 4.4

Enter b2 j: 5.5

Enter b3 k: 6.6

The scalar product is:

38.72

 

Example:3

Develop a program in C++ to implement linear search of an array (Array can be of any type).

Solution:

/**********************************************************************

Program to implement Linear search using the class template

**********************************************************************/

#include<iostream>

#include<cstring>

using namespace std;

template<class T>

class LinSearch

{

     T Array[10];

     T key;

   public:

     LinSearch(T k){ key=k;}

     void Get();

     T Find();

};

template<class T>

void LinSearch<T>::Get()

{

     int i;

     for(i=0;i<=5;i++)

     {

          cout<<"\n Enter the element: ";

          cin>>Array[i];

     }

}

template<class T>

T LinSearch<T>::Find()

{

     Get();

     for(int i=0;i<=5;i++)

          if(Array[i]==key)

               return key;

     return ‒1;

}

void main()

{

LinSearch <int> obj1(10);

LinSearch <double> obj2(10.10);

cout<<"\n\t Handling the integer data..."<<endl;

if(obj1.Find()>=0)

     cout<<"The element is present in the list"<<endl;

else

     cout<<"The element is not present"<<endl;

cout<<"\n\t Handling the double data...";

if(obj2.Find()>=0)

     cout<<"The element is present in the list"<<endl;

else

     cout<<"The element is not present"<<endl;

}

Output

Handling the integer data...

Enter the element: 12

Enter the element: 11

Enter the element: 10

Enter the element: 3

Enter the element: 33

Enter the element: 5

The element is present in the list

Handling the double data...

Enter the element: 1.1

Enter the element: 2.2

Enter the element: 10.10

Enter the element: 4.5

Enter the element: 32.23

Enter the element: 7

The element is present in the list.