Function libR_sys::findInterval2

pub unsafe extern "C" fn findInterval2(
    xt: *mut f64, 
    n: c_int, 
    x: f64, 
    rightmost_closed: Rboolean, 
    all_inside: Rboolean, 
    left_open: Rboolean, 
    ilo: c_int, 
    mflag: *mut c_int
) -> c_int