Week 5 day 4

Today I learned more about the function controlling for C++. It was quite boring though, functions can be used to do almost anything that you can tell or think of. You can make a function for sending a signal app-on an error, or make it do something when something else is done. This is good if you have an error that happens and you want it to return a lone of code when the error occurs in the program. Or if you want it to send you a message when it has completed a task.