bool IIncidenceGraph <TVertex, TEdge> .ContainsEdge(TVertex source, TVertex target) { IIncidenceGraph <TVertex, TEdge> ithis = this; Contract.Requires(source != null); Contract.Requires(target != null); Contract.Requires(ithis.ContainsVertex(source)); Contract.Requires(ithis.ContainsVertex(target)); return(default(bool)); }
bool IIncidenceGraph <TVertex, TEdge> .TryGetEdges( TVertex source, TVertex target, out IEnumerable <TEdge> edges) { IIncidenceGraph <TVertex, TEdge> ithis = this; Contract.Requires(source != null); Contract.Requires(target != null); Contract.Requires(ithis.ContainsVertex(source)); Contract.Requires(ithis.ContainsVertex(target)); edges = null; return(default(bool)); }