C89 The ANSI standard. C23 the most recent draft. Three modest proposals for fixing the C standard. PLOS paper ISO C is not suitable for operating systems. Torvalds on aliasing. Ritchie on aliasing. Three modest proposals for the C
There is a proposal to add “defer” to C. Its biggest example is taken from code that was originally designed to not manage storage at all, but to run once and exit – delegating all the cleanup to exit. The
There is a nice example thread semantics in a paper by David Goldblatt (P1916R0) which illustrates a couple of things about multi-core processing – including how interesting it is and how poorly defined the C11 atomic/thread extension is . A
A perceptive note from Linus Torvalds about the C/C++ “memory model” is reproduced below. From Linus Torvalds <> Date Thu, 7 Jun 2018 08:40:49 -0700 Subject Re: LKMM litmus test for Roman Penyaev’s rcu-rr share 0 On Thu, Jun 7,
In computer science academia, C along with UNIX, and PDP11s, is as unfashionable as can be: the equivalent of other 1970’s relics, like polyester leisure suits and mullets. In 2018 ACM Queue published an essay by David Chisnall called: C
Considering how important “undefined behavior” has become to C semantics and the ISO/IEC JTC1/SC22/WG14 Committee, the lack of any reference to it in the K&R ANSI book is notable and the description in the 1999 C Rationale was quite modest.
The C Standards process over the last few decades has addressed both optimization and pointer type safety largely through a concept called “undefined behavior”. The idea is that instead of positive rules for what compilers and programmers can do, the
This 1998 note by Dennis Ritchie from comp.lang.c (and also here ) is very current since the concept of noalias has definitely crept back into the standard. I have reproduced it verbatim, but lightly formatted for readability. For further reading