Plan 9 from Bell Labs’s /usr/web/sources/contrib/fgb/root/sys/src/cmd/aux/mpage/gencodes.c
#include <stdio.h> main() { int i=0; printf(" 0 ["); putchar (i); for (i = 1; i < 256; i++) { if ((i / 16) * 16 == i) { putchar (']'); putchar ('\n'); printf("%3d [", i); } putchar (i); } putchar (']'); putchar ('\n'); exit(0); } /* main */