Help me decide D or C
russel at winder.org.uk
Fri Aug 2 15:51:25 UTC 2019
On Fri, 2019-08-02 at 13:45 +0000, Alexandre via Digitalmars-d-learn wrote:
> Could you elaborate more about C being a burden? I have read so
> many people saying C gives a great foundation and should be
> everyone's first language. Now I am confused.
C is a programming language created in the early 1970s to make writing UNIX
easier. Early versions of UNIX (and Multics before it) were written in
assembly language. Dennis Ritchie et al. wanted to use a programming language
that had a higher level of abstraction than assembly language so as to make
writing UNIX easier. BCPL gave many of the ideas for B which led to C,
effectively a portable assembly language but with special eyes on the PDP-8,
PDP-11, and later VAX-11 machine codes. C was hugely successful for writing
operating systems because it was "close to the metal" and yet with better
abstractions than assembly language. I spent many happy (and many unhappy)
hours in the early 1980s writing device drivers for UNIX 6, UNIX 7, and BSD
4.0. C was the right tool for the job at hand at that time.
Many tools associated with UNIX were written in C, including the C compiler,
since the only other option at the time in the UNIX context was assembly
language. Already though there was the question: was C the right tool for the
job of writing applications – as opposed to hardware controlling software. One
could argue that "buffer overruns" was clear evidence that C was the wrong
tool for the job.
Unfortunately the obsession with C, even if it was not the right tool for the
job at hand, had taken hold: if you didn't write your application in C you
were somehow a second or third rate human being, let alone programmer.
Then came C++ (or then C with Classes) and the beginning of the rift between
the C camp and the "we need a programming language with higher levels of
abstraction" camp. I am sure many can write lots on the 1990s and 2000s and
the various language wars, but here we are in 2010s entering the 2020s and we
have D, Rust, Go, Java, Kotlin, Python, Ruby, C++, Lisp, Prolog, Erlang, etc.
all of which have their problems, but all of which have their "sweet spots"
for being the right tool for the job at hand. C is no longer the de facto
standard language for writing all software. People are increasingly
recognising that it is as if C were specifically created for writing software
that controls hardware.
C still has a role in the world of programming, and it definitely has a status
as one of the most important programming languages ever.
Moral of this story is that, for me, in 2019, if you are writing applications
software or software tools, C is not the right tool for the job.
Dr Russel Winder t: +44 20 7585 2200
41 Buckmaster Road m: +44 7770 465 077
London SW11 1EN, UK w: www.russel.org.uk
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