gistfile1.txt

#include "pch.h"
#include <cstring>
#include <fstream>
#include <iostream>
#include <iomanip>
#include <string>


std::string toLongRoman(int value);
std::string toLower(std::string intputString);
double getInput(std::string prompt, int min, int max);

const int SENTINEL = 0;

int main()
{
	double numberRow[35]{ 0 };
	std::string roman[35][2]{ " " };


	double userNumber = getInput(
		"Please enter a number 1-5000 >",
		0,
		5000);
	while (userNumber != SENTINEL)
	{
		std::cout << "Number" << std::setw(5) << " " << "Roman" << std::setw(16) << " " << "Lowercase" << std::endl;

		for (int indexRows = 0; indexRows < 20; indexRows++)
		{
			numberRow[indexRows] = userNumber;
			roman[indexRows][0] = toLongRoman(userNumber);
			roman[indexRows][1] = toLower(roman[indexRows][0]);
			std::cout << std::setw(10) << std::left << numberRow[indexRows] << std::setw(20) << roman[indexRows][0] <<
				" " << std::setw(10) << roman[indexRows][1] << std::endl;

			userNumber++;
		}
		
		
		double userNumber = getInput(
			"Please enter a number 1-5000 >", 
			0,
			5000);


	}
	std::cout << "Goodbye!";


	return 0;
}




std::string toLongRoman(int value)
{
	int amountOfLetters = 0;
	std::string romanNumerals = " ";
	// arrays for roman numeral numbers and letters
	int numbers[7]{ 1000, 500, 100, 50, 10, 5, 1 };
	char letters[7]{ 'M','D','C','L','X','V','I' };
	// since there is 7 numbers and letters, this will loop 7 times
	for (int index = 0; index < 7; index++)
	{  // checks to see if number is greater or equal to roman number
		// if less then it will go to loop 2
		if (value >= numbers[index])
		{// divides value by the roman number
			amountOfLetters = (value / numbers[index]);

			// sets the number divided as the loop limit
			for (int count = 0; count < amountOfLetters; count++)
			{// adds as many roman numerals as needed to romanNumerals variable
				romanNumerals += letters[index];
			}
			value %= numbers[index];
		}
	}

	return romanNumerals;
}

std::string toLower(std::string inputString)
{
	// takes the length of inputString and assigns the number to length
	size_t length = inputString.length();

	// uses length to set how many loops will be needed
	for (int index = 0; index < length; index++)
	{ // if theres a capital letter in the string then it will be changed
		// to the lower case version of the letter
		if ((inputString[index] >= 'A') && (inputString[index] <= 'Z'))
		{
			inputString[index] = inputString[index] + 32;
		}
	}


	return inputString;
}

double getInput(std::string prompt, int min, int max) {
	// displays desired prompt and gets user input for number 
	// between min and max numbers.
	// if entered incorrectly, user will try again until correct input
	std::cout << prompt;
	double number = 0;
	std::cin >> number;
	while (std::cin.fail() || number < min || number > max) {
		std::cin.clear();
		std::cin.ignore(2000, '\n');
		std::cout << "Invalid entry, try again. ";
		std::cin >> number;
	}


	return number;
}