question on my definition

Discussion in 'C++' started by kjedmondson182, Oct 12, 2009.

  1. kjedmondson182

    kjedmondson182 New Member

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    im trying to complete my getData definition while avoiding an infinate loop
    my error right now is that
    error C4716: 'getData' : must return a value
    i think i need an if statement? can someone show me an example or something?
    Code:
    [SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]#include[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]<iostream>
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]#include[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]<iomanip>
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]#include[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]<string>
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]namespace[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] std;
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]struct[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] menuItemType
{
string menuItem;
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] menuPrice; 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] numOrdered;
};
menuItemType theMenu[8];
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]void[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] showMenu();
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] getData([/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] choice); 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] Round([/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] &totalTax); 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]void[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] printCheck([/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] &tax, [/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] &totalBill); 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] choice=0; [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// The number the user chooses for the item they want 
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] number=0; [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// Used in the getData function
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] x=0; [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// used in "for" loop to initialize numOrdered to 0.
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] bill = 0.0; 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] totalBill = 0.0; [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// w/ tax
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] tax = 0.0; 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] taxRate = .05; [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// tax% 
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] totalTax =0.0; 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]char[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] shouldContinue; 

 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] main()
{ 

theMenu[0].menuItem = [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"#1 Plain Egg"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]; 
theMenu[1].menuItem = [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"#2 Bacon and Egg"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2];
theMenu[2].menuItem = [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"#3 Muffin"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2];
theMenu[3].menuItem = [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"#4 French Toast"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2];
theMenu[4].menuItem = [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"#5 Fruit Basket"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2];
theMenu[5].menuItem = [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"#6 Cereal"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2];
theMenu[6].menuItem = [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"#7 Coffee"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2];
theMenu[7].menuItem = [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"#8 Tea"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2];
theMenu[0].menuPrice = 1.45; 
theMenu[1].menuPrice = 2.45;
theMenu[2].menuPrice = 0.99;
theMenu[3].menuPrice = 1.99;
theMenu[4].menuPrice = 2.49;
theMenu[5].menuPrice = 0.69;
theMenu[6].menuPrice = 0.50;
theMenu[7].menuPrice = 0.75;
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]for[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] (x = 0; x < 8; x++) [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// Initialize theMenu[x].numOrdered to all 0's. 
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]{
theMenu[x].numOrdered = 0;
}

[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]do
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]{
showMenu(); [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// run the void showMenu() function
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]cout << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"\n"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << endl;
choice = getData(number); [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// Returns the number the person chose the the array number
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]bill = theMenu[choice].menuPrice + bill; [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// Keeps a running total of the bill
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]
theMenu[choice].numOrdered++; [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]//Add 1 to the amount of the item ordered. 
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]cout << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"\n"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << theMenu[choice].numOrdered << setw (20) << theMenu[choice].menuItem << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]" \n"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << endl;
cout << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"Would you like to place another order? (Y/N)"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << endl; [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// Allow to purchase more
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]cin >> shouldContinue;
}
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]while[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] (shouldContinue == [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]'Y'[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] || shouldContinue == [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]'y'[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]);
cout << endl;
totalTax = bill * taxRate;
tax = Round(totalTax);

totalBill = bill + tax;
printCheck(tax, totalBill);
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]return[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] 0;
} 
 
 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]void[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] showMenu()
{
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] x;
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]for[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] (x = 0; x <=8; x++)
cout << theMenu[x].menuItem << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"\t"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << theMenu[x].menuPrice << endl; 
}
 
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] getData([/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] choice)
{
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]while[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2](choice < 0 || choice > [/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]sizeof[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2](theMenu)/[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]sizeof[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2](menuItemType))
{
showMenu(); [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// run the void showMenu() function
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]cout << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"\n"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << choice << endl;
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] choice = getData(number); [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]// Returns the number the person chose the the array number
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]}
}
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] Round([/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]const[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] &totalTax) [/SIZE][SIZE=2][COLOR=#008000][SIZE=2][COLOR=#008000]//Round to the nearest cent. 
[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2]{
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] tax;

tax = totalTax * 100.0 + 0.5;
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]return[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] tax / 100.0;
}
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]void[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] printCheck([/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] &tax, [/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] &totalBill)
{
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] x;
x = 0;
cout << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"Welcome \n"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << endl;
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]for[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] (x = 0; x < 8; x++)
{
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]if[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] (theMenu[x].numOrdered > 0)
{
cout << theMenu[x].numOrdered << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"\t"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << theMenu[x].menuItem << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"\t"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << right << theMenu[x].menuPrice << right << endl; 
}
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]else[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] 
{
cout << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]""[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2];
}
}
cout << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"Tax"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << setw (27) << tax << endl;
cout << [/SIZE][SIZE=2][COLOR=#a31515][SIZE=2][COLOR=#a31515]"Amount Due"[/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2] << setw (20) << totalBill << endl;
}
    [/SIZE]
     
    kjedmondson182, Oct 12, 2009
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  2. xpi0t0s

    xpi0t0s Mentor

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    The error means that it should return a value but doesn't. The statement you need is "return <something>;" (not literally, of course, you have to replace <something> with something appropriate).

    getData calls itself, is that really what you want (recursion)? Recursion is not the same as returning to the top of the function. What do you want getData to do, and how do you want it to use the choice parameter?
     
    xpi0t0s, Oct 13, 2009
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