Function cavalier_contours_ffi::cavc_pline_add

#[no_mangle]
#[must_use]pub unsafe extern "C" fn cavc_pline_add(
    pline: *mut cavc_pline, 
    x: f64, 
    y: f64, 
    bulge: f64
) -> i32

Add a vertex to a polyline pline with x, y, and bulge.

Specific Error Codes

• 1 = pline is null.