TaskModelBranchTieBreak Tie-breaking for variable selection class VarBranch TieBreak< VarBranch > TieBreak<VarBranch> Gecode::tiebreak (VarBranch a, VarBranch b) tiebreak VarBranch a VarBranch b Combine variable selection criteria a and b for tie-breaking. class VarBranch TieBreak< VarBranch > TieBreak<VarBranch> Gecode::tiebreak (VarBranch a, VarBranch b, VarBranch c) tiebreak VarBranch a VarBranch b VarBranch c Combine variable selection criteria a, b, and c for tie-breaking. class VarBranch TieBreak< VarBranch > TieBreak<VarBranch> Gecode::tiebreak (VarBranch a, VarBranch b, VarBranch c, VarBranch d) tiebreak VarBranch a VarBranch b VarBranch c VarBranch d Combine variable selection criteria a, b, c, and d for tie-breaking.