Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/src/libventi/scorefmt.c
#include <u.h> #include <libc.h> #include <venti.h> int vtscorefmt(Fmt *f) { uchar *v; int i; v = va_arg(f->args, uchar*); if(v == nil) fmtprint(f, "*"); else for(i = 0; i < VtScoreSize; i++) fmtprint(f, "%2.2ux", v[i]); return 0; }