ref: e655f4b8bdd9da0c51bd4bece8a2ea2088e57236
dir: /sys/src/libgeometry/fmt.c/
#include <u.h> #include <libc.h> #include <geometry.h> int vfmt(Fmt *f) { Point2 p; p = va_arg(f->args, Point2); return fmtprint(f, "[%g %g %g]", p.x, p.y, p.w); } int Vfmt(Fmt *f) { Point3 p; p = va_arg(f->args, Point3); return fmtprint(f, "[%g %g %g %g]", p.x, p.y, p.z, p.w); } void GEOMfmtinstall(void) { fmtinstall('v', vfmt); fmtinstall('V', Vfmt); }