Answer this using c++ \"Template drill\" 1. Define a template<typename T> struct
ID: 3734526 • Letter: A
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.