C++ jargon

Initially I thought of writing a new part in my series of C++ teachings, but I changed my mind. I start reading a C++ FAQ and I kept reading and reading. Interesting stuff out there and I strongly recommend to go through (in any case, if you’re making any search about any C++ topic on Google, this will be displayed among first 4-5 most relevant webpages, so it is hard to miss it).

I don’t know whether or not the title indeed reflects the content of this post, but it seemed to me that this FAQ site was depicting the way a C++ programmer thinks. The fact that this post is commenting some of the topics in the aforementioned web-site and that the manner in which some hints are outlined and some C++ insights are explained guided me to the idea that the author is speaking into a “C++ jargon”.

I decided to go through those items and to highlight those which popped to my attention, just as I did it with the video courses. This won’t be some kind of short overview of the FAQ, but only my view of some topics which I considered to be more interesting.

One of the interesting discussions is at topic no6 – Big Picture Issues

One thing which I totally agree upon is that business perspective should rule. The author asks rhetorically:

Is it important to know the technical definition of “good OO“? Of “good class design“?

And then the answer comes:

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C++.. PART4

Ok … so let’s go further becasue it seems that this was a quite long-time approach. Anyway I don’t want to wander into useless details but on the other hand I don’t want to miss something that could be important.

18. Class vs Struct – this will be just a discussion about C structs and C++ classes, so emphasizing the main aspects of object oriented programming.
C structures are the part of C language which makes the transition to C++ and object oriented programming. In C they were designed to be more some data
containers, that’s why in C structs you cannot add functions (if it is to take into consideration differences between C++ structs and C++ classes only
the default access type will be considered: public for struct, private for class). When defined a C++ class does not take memory storage, it happens
only when it is instantiated.

But how things are really passing concerning classes’ declaration, definition and instantiation? Basically classes’ definitions are kept in header files and their
declarations and instantiations in source files, in other words everything that does not have an active role in programs’ execution is kept in headers and the program itself, the part that is indeed executed is kept in .c files. This is not mandatory, this is not requested by the standard, but is just a guideline.

Also a frequent practice in designing classes is to declare its members as private and corresponding functions, which access them as public. Actually
this is the very nature of encapsulation, classes’ characteristics are not visible outside of the class but can be modified from within by some functions
which are accessible from outside.

Go on further to #19