Question

C++

Chapter 16 Problem: Implement #25 as a template function (Demonstrate using int, double,

string, and x,y pair object)

24. Write a function that searches a numeric array for a specified value. The function

should return the subscript of the element containing the value if it is found in the

array. If the value is not found, the function should throw an exception.

25. Write a function that dynamically allocates a block of memory and returns a char

pointer to the block. The function should take an integer argument that is the amount

of memory to be allocated. If the new operator cannot allocate the memory, the function

should return a null pointer.

26. Make the function you wrote in Question 24 a template.

27. Write a template for a function that displays the contents of an array of any type.

Answer 1

Thanks for the question.

Here is the completed code for this problem. Let me know if you have any doubts or if you need anything to change.

Thank You !!

################################################################################################

#include<iostream>
using namespace std;

//24. Write a function that searches a numeric array for a specified value. The function
template< typename T>
int indexOf(T array[], T val, int size){
  
   for(int i=0; i<size; i++){
       if( array[i]==val){
           return i;
       }
   }
  
   throw "Value not found inside array.";
  
}

//25. Write a function that dynamically allocates a block of memory and returns a char

char* allocateCharMemory(int size){

   return new char[size];
}

//26. Make the function you wrote in Question 24 a template.
tempate <typename T>
T* allocateMemory(int size){
  
   T* pointer = new T[size];
   return pointer;
}

//27. Write a template for a function that displays the contents of an array of any type
tempate <typename T>
void print(T array[], int size){
   for(int i=0; i<size; i++){
       cout<<T[i]<<" ";
   }
   cout<<endl;
  
}

int main(){
  
   int a[] ={1,2,3,4,5,6,7,8,9,10};
   try{
       int i= indexOf(a,8,10);
       cout<<"Index of "<<6<<" is : "<<i<<endl;
       i= indexOf(a,11,10);
       cout<<"Index of "<<6<<" is : "<<i<<endl;
   }catch(const char *message){
       cout<<message<<endl;
   }
}

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Note:
As per Chegg policy, I am allowed to only the first question with the first 4 sub parts, please post the remaining questions as separate post, and i will be happy to answer them.

Sorry for the inconvenience caused.