Function SCIPvarGetVlbVars 

pub unsafe extern "C" fn SCIPvarGetVlbVars(
    var: *mut SCIP_VAR,
) -> *mut *mut SCIP_VAR

gets array with bounding variables z_i in variable lower bounds x >= b_i*z_i + d_i of given variable x; the variable bounds are sorted by increasing variable index of the bounding variable z_i (see SCIPvarGetIndex())