Yeah, I realized that fact a little late. Relevant snippet from the link about that initial bit of code for J: I showed this fragment to others in the hope of

Yeah, I realized that fact a little late. Relevant snippet from the link about that initial bit of code for J: I showed this fragment to others in the hope of interesting someone competent in both C and APL to take up the work, and soon recruited Roger Hui, who was attracted in part by the unusual style of C programming used by Arthur, a style that made heavy use of preprocessing facilities to permit writing further C in a distinctly APL style.