pub unsafe extern "C" fn GECircle(
x: f64,
y: f64,
radius: f64,
gc: *mut R_GE_gcontext,
dd: *mut _GEDevDesc,
)
pub unsafe extern "C" fn GECircle(
x: f64,
y: f64,
radius: f64,
gc: *mut R_GE_gcontext,
dd: *mut _GEDevDesc,
)