Function CGContextAddArc 

pub extern "C-unwind" fn CGContextAddArc(
    c: Option<&CGContext>,
    x: CGFloat,
    y: CGFloat,
    radius: CGFloat,
    start_angle: CGFloat,
    end_angle: CGFloat,
    clockwise: c_int,
)

👎Deprecated: renamed to CGContext::add_arc

Available on crate feature CGContext only.