Answer this using c++ \"Template drill\" 1. Define a template<typename T> struct

Question

Answer this using c++

"Template drill"

1. Define a template<typename T> struct S{T val}

2. Add a constructr, so that you can initialize with a T

3. Define variables of types S<int>, S<char>, S<double>, S<string>, S<vector>. Initialize them with values of your choice.

4. Read those values and print them

5. Add a function template get() that returns a reference to val

6. Put the definiton of get() outside the class

7. Make val private

8. Do 4 again using get()

9. Add a set() function template so that you can change val

I do not understand how to write the code for this question.

Explanation / Answer

Below is your code Till point 4..

#include<iostream>

#include<cstdlib>

#include<vector>

using namespace std;

//Initilization of Structure

template<typename T>

struct S{

//variable declaration

T val;

//constructor

S(T vl) :val(vl) {

}

};

//Main method

int main() {

//Variables holding entered values

int intV;

char charV;

double doubleV;

string strV;

//GEtting integer from user

cout<<"Enter an integer : ";

cin>>intV;

//Initilizing struct S with int

S<int> intVar(intV);

//Getting character from user

cout<<"Enter a character : ";

cin>>charV;

//Initializing with char

S<char> charVar(charV);

//Getting double from user

cout<<"Enter a double : ";

cin>>doubleV;

//Initializing with double

S<double> doubleVar(doubleV);

//Getting string from user

cout<<"Enter a string : ";

cin>>strV;

//Initializing with string

S<string> stringVar(strV);

//Getting vector from user

vector<int> vect;

int tempV;

cout<<"Enter 3 numbers for vectors : ";

for(int i = 1; i<= 3; i++) {

cout<<" Enter number #"<<i<<" : ";

cin>>tempV;

vect.push_back(tempV);

}

//Initializing with vector

S<vector<int>> vectVar(vect);

//printing the variables using public val

cout<<" Below are your entered values: ";

cout<<" Integer entered : "<<intVar.val;

cout<<" Char entered : "<<charVar.val;

cout<<" Double entered : "<<doubleVar.val;

cout<<" String entered : "<<stringVar.val;

//printing content of Vector

cout<<" Vector contents : ";

for (auto i = vectVar.val.begin(); i != vectVar.val.end(); ++i)

cout << *i << ' ';

}

Output

Enter an integer : 23
Enter a character : Y
Enter a double : 109.34
Enter a string : "Never
Enter 3 numbers for vectors :
Enter number #1 : 1

Enter number #2 : 2

Enter number #3 : 3

Below are your entered values:

Integer entered : 23
Char entered : Y
Double entered : 109.34
String entered : "Never
Vector contents : 1 2 3

Code from point 5 to point 9

#include<iostream>

#include<cstdlib>

#include<vector>

using namespace std;

//Initilization of Structure

template<typename T>

struct S{

//constructor

S(T vl) :val(vl) {

}

S() {

}

//declaration of get() method

T get();

//declaration of set() method

void set(T vl);

//variable declaration

private: T val;

};

//method declaration of get method

template<typename T>

T S<T>::get() {

return val;

}

//method declaration of set method

template<typename T>

void S<T>::set(T vl) {

val = vl;

}

//Main method

int main() {

//Variables holding entered values

int intV;

char charV;

double doubleV;

string strV;

//GEtting integer from user

cout<<"Enter an integer : ";

cin>>intV;

//Initilizing struct S with int

S<int> intVar;

//setting value of variable

intVar.set(intV);

//Getting character from user

cout<<"Enter a character : ";

cin>>charV;

//Initializing with char

S<char> charVar;

//setting value of variable

charVar.set(charV);

//Getting double from user

cout<<"Enter a double : ";

cin>>doubleV;

//Initializing with double

S<double> doubleVar;

//setting value of variable

doubleVar.set(doubleV);

//Getting string from user

cout<<"Enter a string : ";

cin>>strV;

//Initializing with string

S<string> stringVar;

//setting value of variable

stringVar.set(strV);

//Getting vector from user

vector<int> vect;

int tempV;

cout<<"Enter 3 numbers for vectors : ";

for(int i = 1; i<= 3; i++) {

cout<<" Enter number #"<<i<<" : ";

cin>>tempV;

vect.push_back(tempV);

}

//Initializing with vector

S<vector<int>> vectVar;

//setting value of variable

vectVar.set(vect);

//printing the variables using private val and get() method

cout<<" Below are your entered values: ";

cout<<" Integer entered : "<<intVar.get();

cout<<" Char entered : "<<charVar.get();

cout<<" Double entered : "<<doubleVar.get();

cout<<" String entered : "<<stringVar.get();

//printing content of Vector

cout<<" Vector contents : ";

vector<int> vectToPrint = vectVar.get();

for (auto i = vectToPrint.begin(); i != vectToPrint.end(); ++i)

cout << *i << ' ';

}

Output

Enter an integer : 12
Enter a character : N
Enter a double : 12.233
Enter a string : NeverSayNever
Enter 3 numbers for vectors :
Enter number #1 : 1

Enter number #2 : 2

Enter number #3 : 3

Below are your entered values:

Integer entered : 12
Char entered : N
Double entered : 12.233
String entered : NeverSayNever
Vector contents : 1 2 3

I have added comments and made sure all the points you asked are incorporated. Let me know in comments if you still have any issues.

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