SaleS build 1.1.0

/*
sales.cpp
2/7/2016, 1.1.0
Steven Piper, Jordan Prokop, Jesse Winter
*/
#include <iostream>
#include <stdlib.h>
#include <fstream>
#include <iomanip>
#include <cmath>
#include <string>

using namespace std;

//conversion rates. Just multiply any usd amount by whatever currency, to convert it to that currency
double const USD = 1.0;
double const CAN = 1.39;
double const BTC = 0.002664;
double const GBP = 0.69;
void add();
//void convertUSD(double& curr, double conversionCurr);

//prototypes
void welcomeScreen();
char getMenuSelection();
void menuExec(char control);
int charToInt(char var);

int main()
{
    //Greets user
    welcomeScreen();
    do
    {
        //sets selection to what the user enters, after being prompted
        char selection = getMenuSelection();

        //uses what the user enters in, to be ran through the switch statement
        menuExec(selection);
    }
    while (1>0);

    system("pause");
    return 0;
}

/*************************************************
Function: welcomeScreen
Description:Greets the user
Input: no input
Precondition: no precondition
Postcondition: prints out a greeting before returning
*************************************************/
void welcomeScreen()
{
    cout << "Welcome to the SaleS!\n\n";
    return;
}

/*************************************************
Function:getMenuSelection
Description: This will prompt the user with menu options
Input: a single number char value
Precondition: user input must be valid
Postcondition: Returns selection, char value between 1-3, and char X
*************************************************/
char getMenuSelection()
{
    char selection = ' ';
    do
    {
        cout.setf(ios::left);
        cout << setw(40) << "What would you like to do?" << endl;
        cout << setw(40) << "|Add a sales record" << setw(10) << "| 1" << endl;
        cout << setw(40) << "|View a sales record" << setw(10) << "| 2" << endl;
        cout << setw(40) << "|Options" << setw(10) << "| 3" << endl;
        cout << setw(40) << "|Exit" << setw(10) << "| X" << endl;
        cout << "-->|";
        cin >> selection;
        cout << endl;
    }
    //If an invalid char is entered, it will repeat. This allows for functions to not worry about values out of bounds
    while (!(selection == '1' || selection == '2' || selection == '3' || selection == 'X' || selection == 'x'));

    return selection;
}

/*************************************************
Function: menuExec
Description: This takes the char control, that the user entered, and runs it through a switch statement to carry out an action
Input: char control
Precondition: char control must be x, X, 1, 2, or 3
Postcondition: Will run what the user selects
*************************************************/
void menuExec(char control)
{
    //converts the char values to int values, for use in switch statement. X = 0
    int controlInt = charToInt(control);


    //This allows for the switch statement to use Titles instead of numbers
    enum menutitles{EXIT, ADD, VIEW, OPTIONS};
    switch (controlInt)
    {
    case EXIT:
        system("pause");
        exit (1);
        break;
    case ADD:
        add();
        break;
    case VIEW:
        cout << "view";
        //**********************************************
        // insert your function here
        //**********************************************
        break;
    case OPTIONS:
        cout << "options";

        break;
    }
    return;
}

/*************************************************
Function: charToInt
Description: Converts the user input to an int for the switch statement in menuExec
Input: char control
Precondition: char control must be x, X, 1, 2, or 3
Postcondition: Converts 'x'||'X' = 0, '1' = 1, '2' = 2, '3' = 3
*************************************************/
int charToInt(char var)
{
    int control = 0;
    if (var == 'X' || var == 'x')
    {
        control = 0;
    }
    else if (var == '1')
    {
        control = 1;
    }
    else if (var == '2')
    {
        control = 2;
    }
    else if (var == '3')
    {
        control = 3;
    }
    return control;
}

void add()
{

    string sellerName1;
    string sellerName2;
    double sellerTotalSale = 0;

    ofstream salesOutput;

    salesOutput.open("SalesStats.txt", fstream::app);

    cout << "Please Input First Then Last Name Of Salesperson: ";
    cin >> sellerName1;
    cin >> sellerName2;

    salesOutput << endl << sellerName1 << " " << sellerName2 << " - ";

    cout << "Please Input Total Sales Of Salesperson: ";
    cin >> sellerTotalSale;

    salesOutput << sellerTotalSale;

    salesOutput.close();
    return;

}

/**************************************************************************************
=======================================================================================
   _____                                      _
  / ____|                                    | |
 | (___  _ __   __ _ _ __ ___    ___ ___   __| | ___
  \___ \| '_ \ / _` | '__/ _ \  / __/ _ \ / _` |/ _ \
  ____) | |_) | (_| | | |  __/ | (_| (_) | (_| |  __/
 |_____/| .__/ \__,_|_|  \___|  \___\___/ \__,_|\___|
        | |
        |_|
and experimentals
=======================================================================================
***************************************************************************************/

/*************************************************
Function: convertUSD
Description: Converts any usd value to whatever currency (conversions at the top, as const ints)
Input: usd, and amount constant. IE: convertUSD(usdAmount, CAN);
Precondition: Must have US dollar amount as first parameter, and all caps constant as second parameter.
Postcondition: Pass by reference first parameter. WARNING: REMEMBER TO CHANGE CURR SIGN,($, £, etc)
*************************************************/

/*

void convertUSD(double& curr, double conversionCurr)
{
    curr = curr * conversionCurr;
    cout << curr;
    return;
}

*/