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POTD7.1. Problem of the Day #7
Download and Extract
An initial setup of files is provided to you via a shell script: Download potd-q7
Using a terminal, extract the initial files by running the shell script you just downloaded (you
will need to navigate to the directory where you saved the file):
sh potd-q7.sh
Your files for this problem will be in the potd-q7 directory.
The Problem
Today you will become one with the Rule of Three. You are given a class Foo that takes a
name for its constructor. The Foo has a get_name() method that returns the name of the Foo.
The Foo class also keeps track of how many Foo's exist using something called a class
variable, but that is not something we have gone over in class yet.
Your work is to create a Bar class that also has a name, but it stores its name by creating a
new Foo. You will put your code in Bar.h and Bar.cpp. This class should reside in the potd
namespace.
TODO: The class Bar, including:
A private member variable Foo * f_.
A constructor that takes a string.
A copy constructor.
A destructor.
An operator=.
A method string get_name() to return the name contained within f_.
Be sure to allocate your memory correctly!
Testing Your Code
This time we give you a main.cpp. Run the following commands to compile and execute your
code:
make
./main
Sample Output
POTD 7
Total points: 0/1
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There are 0 Foo's in the world.
There are 1 Foo's in the world.
There are 2 Foo's in the world.
There are 3 Foo's in the world.
b1 is aramis
b2 is aramis
b3 is porthos
There are 3 Foo's in the world.
b1 is porthos
b2 is porthos
b3 is porthos
There are 2 Foo's in the world.
There are 1 Foo's in the world.
There are 0 Foo's in the world.
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