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Hex addition program.

BudderProgram101 (6)
I am writing code to take input and then convert it from decimal form to hexadecimal form, then add said hex numbers and display them. I know that what i have is borderline rubbish and I am still revising it but, I really need some input. Also I am using Microsoft Visual Studio as an editor, however I also have code blocks installed if theirs something that will conflict.

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#include "stdafx.h"
#include <iostream>
#include <ctype.h>
#include <string>

using namespace std;

void calculations(int[]);
void hex_conversions(int[], string, string);
void num_corrections(string, string);


int main() {
	string input_dec1, input_dec2;
	int converted_hex[2];
	char change;

	cout << "Please input the two numbers you would like to add:" << endl;
	cout << "Please enter number 1:";
	cin >> input_dec1;
	cout << endl << "Please enter number 2:";
	cin >> input_dec2;
	cout << endl;

	cout << "The two numbers you are adding are " << input_dec1 << " and " << input_dec2 << "." << endl;
	cout << "Would you like to change them? (Y/N)" << endl;
	cin >> change;

	if (change == 'y' || change == 'Y')
		num_corrections(input_dec1, input_dec2);
	else
		hex_conversions(converted_hex, input_dec1, input_dec2);

	//    calculations(converted_hex);

	return 0;
}


void num_corrections(string input_dec1, string input_dec2) {
	int counter = 1;

	cout << "Please enter the new numbers you want to add:" << endl;
	cout << "Re-enter number 1:";
	cin >> input_dec1;
	cout << endl << "Re-enter number 2:";
	cin >> input_dec2;
	cout << endl;



	cout << "The two numbers you are adding now are, " << input_dec1 << " and " << input_dec2 << "." << endl;
}


void calculations(int converted_hex[]) {
	int anwser;

	anwser = converted_hex[0] + converted_hex[1];

	cout << "The two numbers added together are equal to " << anwser << " in hexadecimal form." << endl;
}


void hex_conversions(int converted_hex[], string input_dec1, string input_dec2) {
	int size1 = size(input_dec2) - 1;
	int size2 = size(input_dec1) - 1;

	for (int i = 0; i<size1;i++) //to change the first number to hex format.
		switch (input_dec1) {
		default:
			cout << "Please check your numbers again." << endl;
			num_corrections(input_dec1);
			break;
		case '0':
			converted_hex[i] = 0;
			break;
		case '1':
			converted_hex[i] = 1;
			break;
		case '2':
			converted_hex[i] = 2;
			break;
		case '3':
			converted_hex[i] = 3;
			break;
		case '4':
			converted_hex[i] = 4;
			break;
		case '5':
			converted_hex[i] = 5;
			break;
		case '6':
			converted_hex[i] = 6;
			break;
		case '7':
			converted_hex[i] = 7;
			break;
		case '8':
			converted_hex[i] = 8;
			break;
		case '9':
			converted_hex[i] = 9;
			break;
		case 'a':
			converted_hex[i] = 10;
			break;
		case 'A':
			converted_hex[i] = 10;
			break;
		case 'b':
			converted_hex[i] = 11;
			break;
		case 'B':
			converted_hex[i] = 11;
			break;
		case 'c':
			converted_hex[i] = 12;
			break;
		case 'C':
			converted_hex[i] = 12;
			break;
		case 'd':
			converted_hex[i] = 13;
			break;
		case 'D':
			converted_hex[i] = 13;
			break;
		case 'e':
			converted_hex[i] = 14;
			break;
		case 'E':
			converted_hex[i] = 14;
			break;
		case 'f':
			converted_hex[i] = 15;
			break;
		case 'F':
			converted_hex[i] = 15;
			break;
		}

	for (int i = 0; i<size2;i++) //To change the second input to the respective hex format
		switch (input_dec1) {
		default:
			cout << "Please check your numbers again." << endl;
			num_corrections(input_dec1);
			break;
		case '0':
			converted_hex[i] = 0;
			break;
		case '1':
			converted_hex[i] = 1;
			break;
		case '2':
			converted_hex[i] = 2;
			break;
		case '3':
			converted_hex[i] = 3;
			break;
		case '4':
			converted_hex[i] = 4;
			break;
		case '5':
			converted_hex[i] = 5;
			break;
		case '6':
			converted_hex[i] = 6;
			break;
		case '7':
			converted_hex[i] = 7;
			break;
		case '8':
			converted_hex[i] = 8;
			break;
		case '9':
			converted_hex[i] = 9;
			break;
		case 'a':
			converted_hex[i] = 10;
			break;
		case 'A':
			converted_hex[i] = 10;
			break;
		case 'b':
			converted_hex[i] = 11;
			break;
		case 'B':
			converted_hex[i] = 11;
			break;
		case 'c':
			converted_hex[i] = 12;
			break;
		case 'C':
			converted_hex[i] = 12;
			break;
		case 'd':
			converted_hex[i] = 13;
			break;
		case 'D':
			converted_hex[i] = 13;
			break;
		case 'e':
			converted_hex[i] = 14;
			break;
		case 'E':
			converted_hex[i] = 14;
			break;
		case 'f':
			converted_hex[i] = 15;
			break;
		case 'F':
			converted_hex[i] = 15;
			break;
		}
}

//End code
Last edited on
integralfx (897)
You forgot the [/code] part at the end of your code.
http://www.cplusplus.com/articles/jEywvCM9/

Considering you've already included the string library, why not use stoi?
http://www.cplusplus.com/reference/string/stoi/
BudderProgram101 (6)
Thank you, two things, the first being, what is stoi? The second the teacher that I will be submitting this program to requires that we only use what he has used in class.
integralfx (897)
what is stoi?
string to int
Last edited on
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