Function allegro_primitives_sys::allegro_primitives::al_draw_arc

pub unsafe extern "C" fn al_draw_arc(
    cx: c_float, 
    cy: c_float, 
    r: c_float, 
    start_theta: c_float, 
    delta_theta: c_float, 
    color: ALLEGRO_COLOR, 
    thickness: c_float
)