Category: Programming

I think that the new linker, gold, is now feature complete, and with a bit more testing it should be ready for an open release. I wanted to get it to the point where it could build the Linux kernel. I haven’t actually tested that yet, but it now has everything it needs. The most…

I’m sure everybody who works with free software has occasionally encountered the question as to why anybody would work on it. Obviously people do work on free software, and there are many different reasons why they do. However, there is a certain type of person who finds it all rather mysterious. I recently thought of…

The C and C++ language standards say that overflow of a signed value is undefined behaviour. In the C99 standard this is in section 6.5. In the C++98 standard it is in section 5 [expr], paragraph 5. This means that a correct C/C++ program must never generate signed overflow when computing an expression. It also…

I’ve written code in a number of different languages. The ones which I would say that I was or still am fluent in, in the sense of having written significant programs in them, are, approximately in order: Basic, FORTRAN, Cobol, Forth, APL, PL/1, Pascal, T, C, Common Lisp, Id, Scheme, sh, Tcl, C++. I’ve dabbled…

Why do people still write in C/C++? As many people have said over the years, C and C++ are sharp knives. Pointers and casts are the sharpest of the knives, and many people have run into difficult bugs in those areas. Java generally doesn’t have those problems. Why doesn’t everybody program in Java? The obvious…