temp_converter.cpp

//In this challenge, write a program that takes in three arguments, a start temperature (in Celsius), an end temperature (in Celsius) and a step size. 
//Print out a table that goes from the start temperature to the end temperature, in steps of the step size; you do not actually need to print the final end temperature if the step size does not exactly match. 
//You should perform input validation: do not accept start temperatures less than a lower limit (which your code should specify as a constant) or higher than an upper limit (which your code should also specify). 
//You should not allow a step size greater than the difference in temperatures. (This exercise was based on a problem from C Programming Language). 

//Ask user for start temp (in celsius)

//Ask user for end temp (in celsius)

//ask user for step size


#include <iostream>
using namespace std;

int main ()
{
  //initialize values
  int start_temp;
  int end_temp;
  int step_size;
  bool valid = false;

  //validate user input, repeat until all are correct
  while(!valid)
  {
    cout << "Please enter a starting temperature (>0) in celsius: ";
    cin >> start_temp;
    cout << "Please enter an ending temperature (<150) in celsius: ";
    cin >> end_temp;
    cout << "finally, pick a step size (can't be greater than the difference in temperatures): ";
    cin >> step_size;
    //if user doesn't violate rules, continue program
    if(start_temp > 0 && end_temp < 150 && step_size < (end_temp - start_temp)){
      valid = true;
    }
    else
    {
      cout << "one of your inputs was invalid, please enter valid integers"
    }
  }

  //calculate how many intervals between starting and ending temp, based on step size
  int num_steps = end_temp / step_size;

  //this makes sure that the program never exceeds the ending temp
  if(end_temp % step_size == 0)
  {
    num_steps--;
  }

  //initialize temperatures in farenheit
  int farenheit_temps[num_steps];

  cout << "Celsius         Farenheit" << endl;
  cout << "-------         ---------" << endl;

  //calculate and print both temperatures
  for(int i=0;i<num_steps;i++)
  {
    farenheit_temps[i] = ((start_temp + (i * step_size))* 9 / 5) + 32;
    cout << (start_temp + (i * step_size)) << "              " << farenheit_temps[i] << endl;
  }

  return 0;
}