On Sat, Jun 20, 2020 at 2:09 PM Gua Chung Lim <gua.chung...@gmail.com> wrote: > > * Riccardo Mottola <riccardo.mott...@libero.it> wrote: > > Mercurial? no go: python, please not. Just for this reason, maybe it would > > be perfect if written in equivalent C/C++! And please, don't cite me > > "rust"... even worse. Core things should be written with core tools. > > > > Maybe some sort of "anonymous checkout" of mercurial exists written in C? > I will emphasize on the language being used. > I agree with you with exception of C++. > Cores of all Unix-liked systems should be coded in only C and nothing else. > Previously I used FreeBSD with inclusion of cvsup out of the box. > IIRC, cvsup was coded in Modular-3, which was acceptable for historical > reason. > FreeBSD then offerred the alternative named csup, > which was cvsup-equivalent in C version. I was very glad. > But csup had too short life. FreeBSD then switched to svn a year later. > Whether or not svn is good, csup developers' hearts were already broken. > But svn is still coded in C. It is still acceptable. > Git was born outside BSD land. But it is still coded in C. > Linux is also considered a Unix-liked operating system. > cvs in NetBSD is also coded in C. (But it is much criticized.) > I don't see any good reasons to implement Hg in rust or python. > Please do not say C is hard to implement and maintain the code. > Kernels for nearly all operating systems in the world were coded in C. > How can all developers implement or maintain the code? > C is very well mature, It has been around here for many decades. > And it is much more portable than any other languages including C++, > which has too many standards. > And C++ committee doesn't even care backward compatability. > So please adhere with only C, like what POSIX does.
C++ has become a mess. It no longer feels like a superset of C. I'd settle for something like embedded C++ 03 with exceptions. That is mostly C with objects, and you get the automatic cleanup. I'd like to have lambda's and auto, but then we start getting the extra baggage and bloat of C++ 11 and above. Embedded C++ is usually a good choice. Consider, the Mars rovers are powered by PowerPC chips and the OS and system software is written in embedded C++. Jeff
