4 ms·
Before 1985 there was no C standard, and until 1989 it was only a draft. So I doubt anything was written in standard C in the 1970s or early 1980s.
by ErikCorry 5y ago
Before 1985 there was no C standard, and until 1989 it was only a draft. So I doubt anything was written in standard C in the 1970s or early 1980s.
- phicoh 5y agoC89 is mostly a superset of K&R C. So if you can write an OS in K&R you can write it is C89. The issue was, do modern operating systems require newer versions of the C standard? Or can you write everything in C89.