Polymorphism in C++
C++ implements subtyping polymorphism in the form of
virtual functions, member functions that should be overridden on derived classes, in a way each class implements its own behavior for the function:
virtual void f() = 0;
virtual ~Interface() = default;
struct A : public Interface
void f() overrides
std::cout << "A!" << std::endl;
struct B : public Interface
void f() overrides
std::cout << "B!" << std::endl;
This is an original text by Eax Melanhovich that was rigourosly translated and kindly shared by Andrey Karpov. The original translation can be found here. Many thanks to both.
Why C and C++ Will Never Die
I couldn’t but notice how much interest the readers of this blog [the author’s blog] had shown in the topic “should we let kittens play with new balls of wool?” So I felt like sharing a few more of my reflections on a related subject in regard to the C and C++ languages and the odds that Rust will kill them. No need to tell you that it will inevitably cause a big holy war, so before you proceed, think twice if you really want to go on reading this post and especially participate in a “constructive debate” via comments.
A couple of days ago I was studying at my university library when my colleague Miguel Madrid got up and started to traverse the library looking for programming books. It’s a game we usually play, to find out a good quality book in a place full of Java 2 SE manuals…
There are some gems on that library though. There’s a couple of copies of Alexandrescu’s “Modern C++ Design” (No longer that Modern, right?) and “C++ Template Metaprogramming”, the latter only borrowed by me in the last five years according to the registry. I always try to have a copy of both, it’s easy since there are only a few people doing C++ there, never reaching the “TMP mental asylum” I’m usually in.
But that day, Miguel reached me with a copy of “The Pragmatic Programmer”. “One of the most influential books in the history of software engineering” the cover says. I’m so scared of how software engineering examples look like…
Or why there is no SerialPort in C++
Developing code in C++ for robotics, I often faced the problem of communicating via serial port with a robot, a sensor or any other device. C and C++ are languages supposedly very close to hardware. Furthermore, they are the most common and oldest mainstream programming languages out there. So communicating over a serial port in a portable way should be straightforward.