Function SCIPsolCreateLPSolExact 

pub unsafe extern "C" fn SCIPsolCreateLPSolExact(
    sol: *mut *mut SCIP_SOL,
    blkmem: *mut BMS_BLKMEM,
    set: *mut SCIP_SET,
    stat: *mut SCIP_STAT,
    primal: *mut SCIP_PRIMAL,
    tree: *mut SCIP_TREE,
    lp: *mut SCIP_LPEXACT,
    heur: *mut SCIP_HEUR,
) -> SCIP_RETCODE

creates primal CIP solution with exact rational values, initialized to the current LP solution