pub unsafe extern "C" fn GERect(
x0: f64,
y0: f64,
x1: f64,
y1: f64,
gc: *mut R_GE_gcontext,
dd: *mut _GEDevDesc,
)
pub unsafe extern "C" fn GERect(
x0: f64,
y0: f64,
x1: f64,
y1: f64,
gc: *mut R_GE_gcontext,
dd: *mut _GEDevDesc,
)