Is C++ a prototyping language?

C++ is a programming language that is developed based on popular systems programming language C. It has object-oriented programming support, and features some advanced language constructs that are not necessarily related to OO, such as generics.

Since C++ has C at its core, it is still a systems programming language. But how an object-oriented systems programming language is meaningful? The highest priority for systems programming is efficiency. Although being a hardware-oriented language, C++ completely ignores efficiency.

C programmers want to have total control over hardware. Any C language construct should be easily translated to assembly by hand. A language construct that has uncertain translation to assembly cannot be part of C. Thus, C++ is completely unusable for C programmers.

C++ is not a tool that was demanded by C programmers. It makes them lose control over hardware, and in terms of systems programming, software produced with C++ is unacceptably inefficient.

Still, we see that C++ has some popularity, and it is preferred by some systems programmers. It is very intriguing to see C++ actually being used in the industry, and there must be a reason.

There are very big system software projects. Apparently some systems programmers are using C++ as a prototyping language to achieve a working system in a reasonable time.

For example, Windows was built with C++. Some say that Linux shows 1200% higher performance than Windows.

Windows is a prototype operating system. Products built with C++ cannot be considered as finished products. If a project is implemented in C++ and is going to be used in production, it needs to be ported to C first. It shouldn’t be a very difficult task:
https://www.cs.rit.edu/~ats/books/ooc.pdf

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