Function lpsolve_sys::fsolve

pub unsafe extern "C" fn fsolve(
    lp: *mut lprec, 
    varin: c_int, 
    pcol: *mut c_double, 
    nzidx: *mut c_int, 
    roundzero: c_double, 
    ofscalar: c_double, 
    prepareupdate: c_uchar
) -> c_uchar