Programs in Plan 9 are generally written in rc, alef, or a dialect of ANSI C. The Plan 9 C dialect has some minor extensions and a few major restrictions. The most important restriction is that the compiler demands that all function definitions have ANSI prototypes and all function calls appear in the scope of a prototyped declaration of the function. Each system library has an associated header file, declaring all functions in that library. The standard Plan 9 library is called libc, so all C source files include <libc.h>. These rules guarantee that all functions are called with arguments having the expected types.
Hello 👋, I’m Daniel - a software engineer building high performance bidding systems for Martin that support billions of requests per day with exceptionally low latency. My interests primarily revolve around distributed systems, DeFi, and algorithmic trading. Most of the code I write is in Go, C, C++, or Clojure and in my spare time you’ll find me hacking on Distributed Operating Systems, text editors, or enjoying the outdoors with my family.