Question

In this project you will create a console C++ program that will have the user to enter Celsius temperature readings for anywhere between 1 and 365 days and store them in a dynamically allocated array, then display a report showing both the Celsius and Fahrenheit temperatures for each day entered. This program will require the use of pointers and dynamic memory allocation.

Getting and Storing User Input: For this you will ask the user how many days’ worth of temperature readings they wish to enter. This value must be numeric and between 1 and 365. Do not forget to check for non-numeric input.

Array allocation: Once you have determined how many temperature readings to store, allocate the appropriate amount of memory to a pointer using the new[] operator. This should happen in a try {} block. If the memory allocation fails at run-time, the new[] operator throws a bad_alloc exception. Include a catch{} block that displays the error message “Error allocating memory” to the user if this happens. Remember that all memory allocated with the new[] operator should be freed when you are done with it. The final statement of your try block should delete[] your pointer.

Getting valid temperature readings: The temperatures the user enters should fall between the range -90.0°C and +60.0°C. Do not accept an input value outside of that range.

Processing: Converting Celsius to Fahrenheit To generate the required output, you will need to convert each Celsius temperature to Fahrenheit. Given this is a fairly generic task that could be re-used in another program, you should create a function to do this. The actual calculation is straight forward; the function body may only need to be one line of code, so the function should be ‘inline’. Keep in mind that a processing function should only do processing, not input or output. Pass the Celsius temperature in as a parameter and send the Fahrenheit temperature back using a ‘return’ statement.

Output: This Week’s Temperature Report Use an Output Function: Write a function that will display the temperatures entered in Celsius and Fahrenheit formatted as above. You must pass this function a pointer to the array storing the Celsius temperatures and the number of items in that array and you are required to use pointer arithmetic to move from one index of the array to the next. You may not use the array subscript operator in this function. Formatting Hints: Look up the ASCII code value for the degrees symbol. Each ‘column’ of the report is right aligned ten characters wide.

Answer 1

#include<iostream>

#include<new>

using namespace std;

double convertTemp(double celTemp);

void displayTemp(double *tmp,int size);

int main()

{

double * temp = NULL,cel;

int numberOfDays;

x:

cout << "Enter the number of days: ";

cin >> numberOfDays;

while (!cin)

{

cin.clear();

cin.ignore(numeric_limits<streamsize>::max(), '\n');

cout << "Enter numeric value: ";

cin >> numberOfDays;

}

if (numberOfDays < 1 || numberOfDays>365)

goto x;

try

{

//allocate dynamic memory

temp = new double[numberOfDays];

cout << "Enter temperature in Celsius: ";

for (int i = 0; i < numberOfDays; i++)

{

cin >> cel;

while (!(cel >= -90 && cel <= 60))

{

cout << "Enter valid temperature: " << endl;

cin >> cel;

}

*(temp + i)=cel;

}

//output the temperature

displayTemp(temp,numberOfDays);

}

catch (std::bad_alloc& ba)

{

std::cerr << "Error allocating memory.... " << ba.what() << '\n';

throw;

}

//delete the entire array

delete[] temp;

//to hold the output screen

system("pause");

return 0;

}

double convertTemp(double celTemp)

{

return ((9 * celTemp) / 5) + 32;

}

void displayTemp(double *tmp,int size)

{

char degree =248 ;

for(int i=0;i<size;i++)

{

cout << *(tmp+i) << degree<<"F ";

int temp = convertTemp(*(tmp+i));

cout << temp << degree << "C " << endl;;

}

}

//output

//Need any help regarding this solution just leave a comment ................. Thanks