Getting errors when using enum

[kboeser83]

Im trying to setup enum for the name of the coffee in my struct but I keep getting an invalid use code. What am I doing wrong? Thank you.

#include <iostream>
#include <string>
#include <fstream>
using namespace std;


struct Coffee
{
    enum name {Columbian = 1, French = 2, Italian = 3, House = 4};
    int sugar;
    int strength;
    int size;
    bool cream = false;
};
struct Customer
{
    char fname[20];
    int orderNum[100];
    Coffee pdata;
};

int main()
{

Customer order1;
int x;
int answer;
double names[4]={0, 0.25, 0.25, 0};
double array [5]={1.50, 2.10, 2.50, 3.00, 4.25};
string array1[5] = {"Small (1.50)", "Regular (2.10)", "Medium (2.50)", "Large 3.00", "Extra Large (4.25)"};
double total=0;

cout << "***********************************************\n";
cout << "THIS PROGRAM IS GOING TO TAKE YOUR COFFEE ORDER\n";
cout << "***********************************************\n";

cout << "Would you like a cup of coffee?\n";
cout << "1 - Yes\n";
cout << "2 - No\n";
cout << "3 - Quit\n";

cin >> x;

switch(x)
{
case 1: 
{
cout<<"Please enter your first name\n";
cin>>order1.fname;
cout << "Please enter the type of coffee:\n ";
cout << "1. Columbian\n 2. French Roast\n 3. Italian Blend\n 4. House?\n"; 
cin >> order1.pdata.name;
cout << "Please enter the size of the coffee:\n 0-Small\n 1-Regular\n 2-Medium\n 3-Large\n 4-Extra Large";
cin >> order1.pdata.size;
cout << "Please enter the amount of sugar: 0, 1, 2, 3 or 4?\n";
cin >> order1.pdata.sugar;
cout << "Please enter the strength of the coffee:\n 1-Light\n 2-Medium\n 3-Dark\n";
cin >> order1.pdata.strength;
cout << "Cream? Y or N: ";
cin >> order1.pdata.cream;
cout <<"\n\n\n";
cout << "YOUR ORDER\n";
cout << "----------\n";
cout <<"Order for: "<<order1.fname<<endl;
cout <<"Coffee type:  "<<order1.pdata.name<<endl;
cout <<"Coffee size: "<<order1.pdata.size<<endl;
cout <<"Amount of sugar:  "<<order1.pdata.sugar<<endl;
cout <<"Strength of Coffee:  "<<order1.pdata.strength<<endl;

if(order1.pdata.cream == 1)
{
    cout << "Cream: No";
}
if(order1.pdata.cream == 0)
{
    cout << "Cream: Yes";
}
total= (array[order1.pdata.size])+total;

cout << "\n\nYour total is "<<total;

ofstream myfile;
myfile.open("CustOrder.dat");
myfile << "Order: \n";
myfile << "Coffee Type: " <<order1.pdata.name <<endl;
myfile << "Size: " << order1.pdata.size <<endl;
myfile << "Sugar: " <<order1.pdata.sugar <<endl;
myfile << "Strength: " <<order1.pdata.strength <<endl;
myfile << "Cream: "<< order1.pdata.cream <<endl;
myfile << "Your total is: " << total <<endl;

break;
}
case 2:
{
cout<< "Would you like to see your order? ";
cin>>answer;
break;
}
case 3: 
{
cout<< "Goodbye";
return 0;
}
}

return 0;

}

[kboeser83]

And apparently I dont know how to use code tags either. My apologies

[George P]

You don't need an enum. Change the enum statement to int name; and the code should compile and run.

I dont know how to use code tags

How to use code tags
http://www.cplusplus.com/articles/jEywvCM9/

Hint: you can edit your post and add them.

[kboeser83]

I have to enumerate it according to my assignment unfortunately. I actually have to do it for coffee name, size, strength.

[George P]

If you need to use enums you need to learn how to use them properly. enums are not variables you can assign values to after being created, they are custom user-created data types.

https://www.learncpp.com/cpp-tutorial/45-enumerated-types/

Please read carefully the section on enum input/output.

Posting the full requirements of your assignment could be helpful for us to help you mashing the code so it works as you intend. I can see several areas that probably need changes/rewrites right now.

[kboeser83]

This is the part of the assignment:

Modify the struct from lab 4 so that the values for coffee name are enumerated as Columbian=1,
French Roast=2, Italian Blend=3, House=4; and the values for strength are enumerated as
1=light, 2=medium, 3=dark. Also, add to the struct an attribute for coffee size that will be
enumerated as small=0, regular=1, medium=2, large=3, extra-large =4. The cost is calculated as
follows small $1.50, regular $2.10, medium $2.50, large $3, extra-large $4.25.

[JLBorges]

#include <iostream>

struct Coffee
{
    // the enumeration type name_t is a distinct type
    enum name_t { Columbian = 1, French = 2, Italian = 3, House = 4 };

    // declare a member variable of type name_t
    name_t name ;

    // ...
};

struct Customer
{
    // ...
    Coffee pdata;
};

int main()
{
    Customer order1 ;

    // ...

    // read the integer value of coffee type into an int
    int coffee_type = -99 ; // iniotialise to an invalid value
    while( coffee_type < 1 || coffee_type > 4 ) // repeat till we get a valid input [1,4]
    {
        std::cout << "Please enter the type of coffee:\n "
                  << "1. Columbian\n 2. French Roast\n 3. Italian Blend\n 4. House\n"
                  << "? " ;
        std::cin >> coffee_type ; // for now, we assume that the user does enter an integer
    }

    // once we get here, we have a valid integer value for coffee type
    // a value of type int can be converted to the enumeration type via a cast
    order1.pdata.name = Coffee::name_t(coffee_type) ; // set the enum member to the valid value

    // just for now: so that we know what is going on
    // there is an implicit conversion from the enumeration type to an integer
    std::cout << "the integer value of order1.pdata.name is " << order1.pdata.name << '\n' ;

    // ...
}

[againtry]

#include <iostream>
#include <string>

int main()
{
    std::string coffee_name[]{"Columbian", "French", "Italian", "House"};
    enum coffee: int {Columbian, French, Italian, House};
    
    std::cout << coffee_name[ coffee(Columbian) ] << ' ' << coffee(Italian) << '\n';
    
    return 0;
}

Columbian 2
Program ended with exit code: 0