C++ has added the ability to have default arguments be defined when you declare your functions. To define a default value, you must specify the parameter name, and then assign it a value. If someone calls this function without passing an argument to the function, the computer will use 20 as the parameter. If they…
In previous examples, we’ve had to write our functions above the place where they are called. However, many developers like to place main as their first function they see, so it’s easier to find. Or they may not know the order that the function will be called. C and C++ allow you to define a…
Overloading a function means that you can create different functions with the same name, as long as their signatures are different. That means that the parameter list must be of a different number and/or data types from one to another. Overloading functions can make reading code much clearer/easier. This way functions that perform the same…
We’ve mentioned that you pass values to a function. This is mostly true. When you pass a hard coded value as your argument, you always pass the value. See the example below. If you pass a primitive data type (int, float, long, double, char, bool – just to name a few examples), you pass by…
You will find defining a function in C++ very similar to defining a function in Python. There are some differences however. Let’s look at the general form, and then define the sections from here. Functions must be defined outside of other functions. C/C++ doesn’t have the concept of a sub or inner function like some…
There are times and cases when a use case using simple text, cannot properly describe a process. In those cases, look to supplement the Use Case to make it easier to understand the process. Activity diagrams can be used to show the workflow of a process the the user/system should take. A Swimlane diagram can…
A successful software product can be measured in many different ways (accuracy, speed, etc) however user satisfaction is often at the top of the list. A use case should properly describe how a user is going to use the system, so that it can be easily modeled and built – so that the users are…
Chapter 9 will focus on scenario bases modeling. Throughout analysis modeling, your focus should be on what, not how. While everything may not be known, we can approach this in an iterative method refining the model until everything is uncovered. The requirements model should have 3 primary objectives: Elements of an analysis modeling: Requirements Analysis…
