pub unsafe extern "C" fn manifold_cross_section_of_simple_polygon(
mem: *mut c_void,
p: *mut ManifoldSimplePolygon,
fr: ManifoldFillRule,
) -> *mut ManifoldCrossSection
pub unsafe extern "C" fn manifold_cross_section_of_simple_polygon(
mem: *mut c_void,
p: *mut ManifoldSimplePolygon,
fr: ManifoldFillRule,
) -> *mut ManifoldCrossSection