Part $1(0\%)$

This workshop consists of two modules:

w$1($partially supplied$)$

Food Order

w$1$ Module $($partially supplied$)$

Study the code supplied and make sure you understand it$.$

Finish the implementation of the main function, by completing the parts marked with TODO:

write the prototype of the main function to receive a set of standard command line arguments

echo the set of arguments to standard output in the following format:

$1$: first argument

$2$: second argument

$3$: third argument

$4$: $...$

Do not modify this module in any other place!

FoodOrder Module

The FoodOrder module defines the current tax rate and daily special discount, as two global variables named g$\_$taxrate and g$\_$dailydiscount that stores double values. The value of the tax rate and daily discount may change from day to day. These two variables will be accessed when a new day of orders starts from the main function.

This module also defines a class named FoodOrder in the namespace seneca that stores some information about an order of food:

a C$-$style null$-$terminated string of up to $10$ characters including the null byte terminator representing the name of the customer ordering the food.

a C$-$style null$-$terminated string of up to $25$ characters including the null byte terminator representing the description of the food.

the price of the food represented by a double value.

a boolean flag indicating whether or not the order is a daily special

Public Members

Default constructor

read$()$: a modifier that receives an istream reference.

If the istream is in a good state, this function will attempt to read from the istream and store the information read into current object. The data read in will be in the following format:

$,,,[$newline$]$

The daily special status can be of two values: $\text{'}$Y$\text{'}$ for it is a special and $\text{'}$N$\text{'}$ for it is not.

If the istream object is not in a good state then this function will do nothing.

When implementing the read function it may be advisable to review the Input$/$Output Objects chapter from the $200/244$ Course Notes.

display$()$: a query that displays to the screen the content of an Food Order instance in the following format:

COUNTER. Name $|$Order Description $|$Price w$/$Tax $|$Special Price

If no customer name has been stored in the current object, this query should print:

COUNTER. No Order

where

COUNTER is a left aligned field of size $2,$ that holds the number of times that this function has been called $($use a local$-$to$-$function variable that remains in memory for the lifetime of the program$)$ Do not use global$/$member variables to store the counter!

Name is a left aligned field of size $10$ that represents the name of the customer that made the order.

Order Description is a left aligned field of size $25$ that represents the description of the food ordered.

Price w$/$Tax is a left aligned field of size $12$ with $2$ decimal point precision that represents the price of the food ordered with tax calculated based on the current tax rate.

Special Price is a right aligned field of size $13$ that represents the taxed price of the food ordered with the daily discount applied on top if the order was a daily special. If the order isn't a daily special then nothing is printed here.

Add any other private members that your design requires $($without changing the specs above$)!$

Sample Output

The input files day$1.$txt and day$2.$txt are already provided; the main module contains a description of the structure for these files.

When the program is started with the command:

ws day$1.$txt day$2.$txt

the output should look like the one from the sample$\_$output.txt file.

Test Your Code

To test and demonstrate execution of your program use the same data as shown in the output example above.

Upload your source code to your matrix account. Compile and run your code using the latest version of the g$++$ compiler $($available at $/$usr$/$local$/$gcc$/10\mathrm{.}2\mathrm{.}0/$bin$/$g$++)$ and make sure that everything works properly.

Then, run the following command from your account $($replace profname.proflastname with your professor$$s Seneca userid$)$:

~profname.proflastname$/$submit $345\_$w$1\_$p$1$

and follow the instructions.

This part represents a milestone in completing the workshop and is not marked!

Part $2(100\%)$

For this part of the workshop, upgrade your FoodOrders class to accept an food description in the form of a C$-$style null$-$terminated string of any length. Make sure your program doesn't have memory leaks.

In order to facilitate the changes needed for this part, consider the use of these std::string related functions:

std::getline

std::string::c$\_$str

std::string::length

Sample Output

When the program is started with the command:

ws day$1.$txt missing.txt day$2.$txt

the output should look like the one from the sample$\_$output.txt file.