By Matthew Telles
Such a lot books hide the syntax of the language. This ebook covers a few attention-grabbing tips to use it successfully. particularly, i used to be attracted to this e-book for its instance of a category manufacturing unit. now not a subject matter coated in so much books.
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Extra info for C++ Timesaving Techniques For Dummies (For Dummies (Computer/Tech))
Then you can build on that common base in the future, more easily creating new versions of the classes as the need arises. 3 Technique Save Time By ߜ Understanding polymorphism ߜ Overriding selected pieces of a class ߜ Customizing classes at run-time ߜ Using destructors with virtual functions Customizing a Class with Virtual Functions P olymorphism (from the Greek for “having many forms”) is what happens when you assign different meanings to a symbol or operator in different contexts. All well and good — but what does it mean to us as C++ programmers?
And eliminate problems of this sort that would otherwise naturally crop up later. 5 Separating Rules and Data from Code Technique Save Time By ߜ Using encapsulation to separate rules and data from code ߜ Building a datavalidation class ߜ Testing the datavalidation class O ne of the biggest problems in the software-development world is maintaining code that we did not design or implement in the first place. Often the hardest thing to do in such cases is to figure out exactly how the code was meant to work.
For this reason, you should put in enough assert statements to be sure that the tests of your system will reveal all of the potential problems that you should check for and handle at run-time. Let’s look at a simple example of using an assert call in your program. 1. In the code editor of your choice, create a new file to hold the code for the source file of the technique. cpp, although you can use whatever you choose. This file will contain the source code for our example. 2. Type the code in Listing 7-1 into your file, substituting your own names for the italicized constants, variables, and filenames.