ref: 4e91e4a2dbab9d79e1047cfc2094a438561b5a21
dir: /sys/src/libdraw/fmt.c/
#include <u.h> #include <libc.h> #include <draw.h> int Rfmt(Fmt *f) { Rectangle r; r = va_arg(f->args, Rectangle); return fmtprint(f, "%P %P", r.min, r.max); } int Pfmt(Fmt *f) { Point p; p = va_arg(f->args, Point); return fmtprint(f, "[%d %d]", p.x, p.y); }