Question

Here's an assignment that'll give you some practice with pointers. All you have to do is write a program that allows the user to populate an array of doubles (5 values) by calling the function InitArray. After the user has entered all the values, then call the function DispRevArray to display the array in reverse. Main will create and allocate space for an array of type double for 5 elements. Then you will create and allocate a pointer that will point to the array. You will display the address of the array, the address of what the pointer is pointing to, and the address of the pointer. Then main will call the functions InitArray and DispRevArray passing as arguments the pointer and the number of elements in the array. InitArray will take as argument a pointer to an array of type double and the number of elements in the array and have a void return type. It will prompt the user to enter 5 values and initialize the array via the pointer passed as an argument. DispRevArray will take as argument a pointer to an array of type double and the number of elements in the array and have a void return type. It will display the contents of the array, via using the pointer, in reverse. It will display them using a 1-digit significance. You will program this using your own algorithm or finding an algorithm online that you can program, but you will not use a built-in function. Notes You can save your code in a file named pointers.cpp in your HW18 directory. Note that you won't need to use multiple modules, just one implementation file. Sample Run $ ./a.out This is the address of the array: Oxffffcbco This is the address of where the pointer is pointing to: Oxffffcbco This is the address of the pointer: Oxffffcbb8 Please enter 5 values for the array: 1.1 2 3 4 5.5 The array you entered in reverse is: 5.5 4.0 3.0 2.0 1.1

Answer 1

PLEASE GIVE IT A THUMBS UP, I SERIOUSLY NEED ONE

nikhil@nikhil-Vostro-15-3568:-/Desktop/CODEŞ 9++ demo.cpp nikhil@nikhil-Vostro-15-3568:~/Desktop/CODE$ ./a.out This is the address of the array: ox7ffc47b2b2do This is the address of where the pointer is pointing to: ox7ffc47b2b2do This is the address of the pointer: 0x7ffc47b2b2c8 Please enter 5 values for the array: 1.1 2 3 4 5.5 The array you entered in reverse is: 5.5 4.0 3.0 2.0 1.1 nikhil@nikhil-Vostro-15-3568:-/Desktop/CODES

#include <iostream>
using namespace std;

void InitArray(double *arr, int SIZE){
  cout<<"\nPlease enter 5 values for the array:"<<endl;
  for(int i=0;i<SIZE;i++){
    cin>>arr[i];
  }
}

float roundoff(double var) 
{
  double value = (int)(var * 10 + .5); 
  return (double)value / 10; 
} 

bool isWhole(double num)
{
  return num == static_cast<int>(num);
}

void DispRevArray(double *arr, int SIZE){
  cout<<"\nThe array you entered in reverse is: ";
  for(int i=SIZE-1;i>=0;i--){
    if(isWhole(arr[i]))
      cout<<arr[i]<<".0"<<" ";
    else
      cout<<roundoff(arr[i])<<" ";
  }
  cout<<endl;
}

int main(int argc, char const *argv[])
{
  double arr[5];
  double *p = arr;
  cout<<"This is the address of the array: "<<&arr<<endl;
  cout<<"This is the address of where the pointer is pointing to: "<<p<<endl;
  cout<<"This is the address of the pointer: "<<&p<<endl;
  InitArray(p,5);
  DispRevArray(p,5);
  return 0;
}

X X A.java X demo.py 1 } { } { -/Desktop/CODE/demo.cpp (CODE) - Sublime Text (UNREGISTERED) File Edit Selection Find View Goto Tools Project Preferences Help U datal.dat output.txt practice.h х demo.c index.html X demo.cpp U data2.dat #include <iostream> data3.dat 2 using namespace std; 3 data_keyword.sc 4 void InitArray(double *arr, int SIZE){ date.dat 5 cout<<"\nPlease enter 5 values for the array:"<<endl; 6 for(int i=0;i<SIZE;i++){ /* Date.h 7 cin>>arr[i]; 8 } E Decrypt.txt 9 10 /* demo.c 11 float roundoff(double var) 12 /* demo.cpp 13 double value = (int) (var * 10 + .5); demo.csv 14 return (double)value / 10; 15 /* demo.py 16 17 bool isWhole(double num) /* demo.sh 18 19 E Encrypt.txt return num = static cast int>(num); 20 E example.txt 21 22 void DispRevArray(double *arr, int SIZE){ /* filel.json 23 cout<<"\nThe array you entered in reverse is: "; 24 for(int i=SIZE-1; i>=0;i--){ filel.npy 25 if(isWhole(arr[i])) 26 cout<<arr[i]<<".0"<<" "; file2.npy 27 else TE file2.txt 28 cout<<roundoff(arr[i])<<" "; 29 gr 30 cout<<endl; 31 } input.txt 32 33 int main(int argc, char const *argv[]) inStrings.txt 34 35 last30days.txt double arr[5]; 36 double p= arr; 37 /* NumberList.cpp cout<<"This is the address of the array: "<<Sarr<<endl; 38 cout<<"This is the address of where the pointer is pointing to: "<<p<<endl; E output.txt 39 cout<<"This is the address of the pointer: "<<<p<<endl; 40 InitArray (p.5); /* practice.h 41 DispRevArray(p.5); 42 return; TE secret.txt 43 /* Security.h } } { } Line 28, Column 7 Spaces: 2 C++