[C++] MultiCalc (WIP)

Hey. I've just recently taken learning C++ back up, and this is my first new project. It's kind of nooby, because I forgot most of what I learned before. This was just done today, with not a lot of time done reading up on more advanced methods. Features so far: Addition, and Celsius to Fahrenheit converter.

Todo list:
Subtraction
Multiplication
Dision
Fahrenheit to Celsius converter
Cleanup of code
Make spacing of lines more easily readable
Coloring (last, or near last)

Preview of current version.


Code...

Code:

//
// Author: Ronald Munday
// Date: 12/26/2010
// Program:
// MultiCalc - A calculator with multiple functions.
// Addition
// Multiplication
// Subtraction
// Division
// Fahrenheit to Celcius
// Celcius to Fahrenheit
//
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <windows.h>
using namespace std;

int funcAdd();
int funcSub();
int funcMulti();
int funcDiv();
int funcFtoC();
int funcCtoF();
int funcMain();

int main()
{
    system("title MultiCalc.exe - by Ronald Munday");
    int funcChoice;
    cout << "Hello, to start MultiCalc please choose from the following options. \nTo select one, please type the number and press enter.\n\n" << endl;
    cout << " 1. Addition\n 2. Subtraction\n 3. Multiplication\n 4. Division\n 5. Fahrenheit to Celsius\n 6. Celsius to Fahrenheit.\n\n" << endl;
    cin >> funcChoice;

    switch(funcChoice)
    {
        case 1:
            funcAdd();
            break;
        case 6:
            funcCtoF();
            break;
    }
}

int funcAdd()
{
 int firstNumber;
 int secondNumber;
 int calcResult;
 cout << "You chose addition. Please enter the first number.\n";
 cin >> firstNumber;
 cout << "Now enter the second number.\n";
 cin >> secondNumber;

 calcResult = firstNumber + secondNumber;

 cout << "The result is: " << calcResult << endl;

 funcMain();
}

int funcSub()
{
    cout << "VOID";
}

int funcMulti()
{
    cout << "VOID";
}

int funcDiv()
{
    cout << "VOID";
}

int funcFtoC()
{
    cout << "VOID";
}

// The function to convert Celsius degrees into Fahrenheit
// Fahrenheit = Celsius * (212-32)/100 + 32
int funcCtoF()
{
    int degCelsius;
    int convFactor = 212 - 32;
    int degFahrenheit;
    cout << "Celsius to Fahrenheit converter chosen.\n" << endl;
    cout << "Please eneter the degrees in Celsius: ";
    cin >> degCelsius;

    degFahrenheit = convFactor * degCelsius/100 + 32;

    cout << degCelsius << " is converted to " << degFahrenheit << "." << endl;

    funcMain();
}

int funcMain()
{
    int backMain;
    cout << "Do you wish to back to the menu? Please choose.\n 1. Yes\n 2. No"<< endl;
    cin >> backMain;

    switch(backMain)
    {
        case 1:
            main();
            break;

        case 2:
            cout << "Thank you." << endl;
            cin.get();
            return 0;
        default:
            cout << "Please choose either 1 or 2." << endl;
            funcMain();
    }

}

To compile the code, you will need a C++ compiler. The one I used (and it works pretty well for free) is called Code::Blocks. If you are serious about programming, the download with MinGW is best.

Downloads:
http://www.codeblocks.org/downloads/26

Normal download (Windows::non-MinGW):
http://prdownload.berlios.de/codeblocks/codeblocks-10.05-setup.exe

My .exe is included with the source code. (Not a virus, if you don't trust me compile the code yourself.)

 

No virus, download it. Looks great Ron keep it up bro.

 

Thanks I'll be keeping it updated as I work on it. Once all the functions are at least working, I'll be adding the capability to do multiple equations for adding, subtracting, multiplication, and division. I don't think the temperature conversion really needs multiple equations. I'll also work on cleaning the code. This current code is very sloppy, I didn't even put many comments XD
-- Merged Posts --
Basic terminology of my above code...

// - Comments, they will not appear in the program itself, and are just for editing purposes.
{ - beginning of any section of code
#include <xxx> - Header files, essentially libraries containing all the commands I'm using.
int funcAdd(), etc. - Function prototypes. I basically just declared these early so I would be able to use them later without worrying too much about order.
int main() {} - Where the main program code is (between brackets {})
int xxx() {} - Actual functions of the program.
system - A system command
int - an integer placeholder
cout - Console output (text)
cin - Console input (gets stored in appropriate placeholders)
switch - Basically just a series of preset orders, that if met do certain functions.
; - ends all statements.
{ - ending of any section of code.

 

Nice explanation man, you really can do it. You will make it I remember the time when you first started c++ I think that was like 8 months ago?

 

Actually a lot longer ago. Just more seriously 8 months ago.

 

I just saw this thread, I haven't messed with C++ but I do code in C# at work.
Would love to see more examples of code.