src/work/marci/graph_wrapper.h
changeset 168 27fbd1559fb7
parent 158 4f54d89fa9d2
child 174 44700ed9ffaa
     1.1 --- a/src/work/marci/graph_wrapper.h	Thu Mar 11 12:55:50 2004 +0000
     1.2 +++ b/src/work/marci/graph_wrapper.h	Thu Mar 11 14:15:07 2004 +0000
     1.3 @@ -19,6 +19,12 @@
     1.4      typedef typename Graph::InEdgeIt InEdgeIt;
     1.5      //typedef typename Graph::SymEdgeIt SymEdgeIt;
     1.6      typedef typename Graph::EachEdgeIt EachEdgeIt;
     1.7 +
     1.8 +    //TrivGraphWrapper() : graph(0) { }
     1.9 +    TrivGraphWrapper(Graph& _graph) : graph(&_graph) { }
    1.10 +
    1.11 +    void setGraph(Graph& _graph) { graph = &_graph; }
    1.12 +    Graph& getGraph() const { return (*graph); }
    1.13      
    1.14      template<typename I> I& getFirst(I& i) const { return graph->getFirst(i); }
    1.15      template<typename I, typename P> I& getFirst(I& i, const P& p) const { 
    1.16 @@ -66,6 +72,7 @@
    1.17        NodeMap(const TrivGraphWrapper<Graph>& _G, T a) : 
    1.18  	Graph::NodeMap<T>(_G.getGraph(), a) { }
    1.19      };
    1.20 +
    1.21      template<typename T> class EdgeMap : public Graph::EdgeMap<T> { 
    1.22      public:
    1.23        EdgeMap(const TrivGraphWrapper<Graph>& _G) : 
    1.24 @@ -73,12 +80,6 @@
    1.25        EdgeMap(const TrivGraphWrapper<Graph>& _G, T a) : 
    1.26  	Graph::EdgeMap<T>(_G.getGraph(), a) { }
    1.27      };
    1.28 -    
    1.29 -    void setGraph(Graph& _graph) { graph = &_graph; }
    1.30 -    Graph& getGraph() const { return (*graph); }
    1.31 -  
    1.32 -    //TrivGraphWrapper() : graph(0) { }
    1.33 -    TrivGraphWrapper(Graph& _graph) : graph(&_graph) { }
    1.34    };
    1.35  
    1.36    template<typename Graph>
    1.37 @@ -97,6 +98,12 @@
    1.38      typedef typename Graph::InEdgeIt OutEdgeIt;
    1.39      //typedef typename Graph::SymEdgeIt SymEdgeIt;
    1.40      typedef typename Graph::EachEdgeIt EachEdgeIt;
    1.41 +
    1.42 +    //RevGraphWrapper() : graph(0) { }
    1.43 +    RevGraphWrapper(Graph& _graph) : graph(&_graph) { }
    1.44 +
    1.45 +    void setGraph(Graph& _graph) { graph = &_graph; }
    1.46 +    Graph& getGraph() const { return (*graph); }
    1.47      
    1.48      template<typename I> I& getFirst(I& i) const { return graph->getFirst(i); }
    1.49      template<typename I, typename P> I& getFirst(I& i, const P& p) const { 
    1.50 @@ -144,6 +151,7 @@
    1.51        NodeMap(const RevGraphWrapper<Graph>& _G, T a) : 
    1.52  	Graph::NodeMap<T>(_G.getGraph(), a) { }
    1.53      };
    1.54 +
    1.55      template<typename T> class EdgeMap : public Graph::EdgeMap<T> { 
    1.56      public:
    1.57        EdgeMap(const RevGraphWrapper<Graph>& _G) : 
    1.58 @@ -151,12 +159,6 @@
    1.59        EdgeMap(const RevGraphWrapper<Graph>& _G, T a) : 
    1.60  	Graph::EdgeMap<T>(_G.getGraph(), a) { }
    1.61      };
    1.62 -
    1.63 -    void setGraph(Graph& _graph) { graph = &_graph; }
    1.64 -    Graph& getGraph() const { return (*graph); }
    1.65 -
    1.66 -    //RevGraphWrapper() : graph(0) { }
    1.67 -    RevGraphWrapper(Graph& _graph) : graph(&_graph) { }
    1.68    };
    1.69  
    1.70  
    1.71 @@ -182,6 +184,12 @@
    1.72      typedef typename Graph::InEdgeIt GraphInEdgeIt;
    1.73      //public:
    1.74  
    1.75 +    //UndirGraphWrapper() : graph(0) { }
    1.76 +    UndirGraphWrapper(Graph& _graph) : graph(&_graph) { }
    1.77 +
    1.78 +    void setGraph(Graph& _graph) { graph = &_graph; }
    1.79 +    Graph& getGraph() const { return (*graph); }
    1.80 +  
    1.81      class EdgeIt {
    1.82        friend class UndirGraphWrapper<Graph>;
    1.83        bool out_or_in; //true iff out
    1.84 @@ -196,9 +204,6 @@
    1.85  
    1.86      class OutEdgeIt : public EdgeIt {
    1.87        friend class UndirGraphWrapper<Graph>;
    1.88 -      //bool out_or_in; //true iff out
    1.89 -      //GraphOutEdgeIt out;
    1.90 -      //GraphInEdgeIt in;
    1.91      public:
    1.92        OutEdgeIt() : EdgeIt() { }
    1.93        OutEdgeIt(const UndirGraphWrapper& _G, const NodeIt& n) : EdgeIt() { 
    1.94 @@ -287,6 +292,7 @@
    1.95        NodeMap(const UndirGraphWrapper<Graph>& _G, T a) : 
    1.96  	Graph::NodeMap<T>(_G.getGraph(), a) { }
    1.97      };
    1.98 +
    1.99      template<typename T> class EdgeMap : public Graph::EdgeMap<T> { 
   1.100      public:
   1.101        EdgeMap(const UndirGraphWrapper<Graph>& _G) : 
   1.102 @@ -294,12 +300,6 @@
   1.103        EdgeMap(const UndirGraphWrapper<Graph>& _G, T a) : 
   1.104  	Graph::EdgeMap<T>(_G.getGraph(), a) { }
   1.105      };
   1.106 -    
   1.107 -    void setGraph(Graph& _graph) { graph = &_graph; }
   1.108 -    Graph& getGraph() const { return (*graph); }
   1.109 -  
   1.110 -    //TrivGraphWrapper() : graph(0) { }
   1.111 -    UndirGraphWrapper(Graph& _graph) : graph(&_graph) { }
   1.112    };
   1.113  
   1.114  
   1.115 @@ -386,13 +386,16 @@
   1.116      FlowMap* flow;
   1.117      const CapacityMap* capacity;
   1.118    public:
   1.119 +
   1.120      ResGraphWrapper(const Graph& _G, FlowMap& _flow, 
   1.121  	     const CapacityMap& _capacity) : 
   1.122        G(&_G), flow(&_flow), capacity(&_capacity) { }
   1.123  //     ResGraphWrapper(const ResGraphWrapper& res_graph_wrapper) : 
   1.124  //       G(res_graph_wrapper.G), flow(res_graph_wrapper.flow), capacity(res_graph_wrapper.capacity) { }
   1.125 -    void setGraph(Graph& _graph) { graph = &_graph; }
   1.126 -    Graph& getGraph() const { return (*graph); }
   1.127 +
   1.128 +    void setGraph(const Graph& _graph) { graph = &_graph; }
   1.129 +    const Graph& getGraph() const { return (*G); }
   1.130 +
   1.131      class EdgeIt; 
   1.132      class OutEdgeIt; 
   1.133      friend class EdgeIt; 
   1.134 @@ -401,94 +404,49 @@
   1.135      class EdgeIt {
   1.136        friend class ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>;
   1.137      protected:
   1.138 -      //const ResGraph3<Graph, Number, FlowMap, CapacityMap>* resG;
   1.139 -      const Graph* G;
   1.140 -      FlowMap* flow;
   1.141 -      const CapacityMap* capacity;
   1.142 -      //OldSymEdgeIt sym;
   1.143 +      bool out_or_in; //true, iff out
   1.144        OldOutEdgeIt out;
   1.145        OldInEdgeIt in;
   1.146 -      bool out_or_in; //true, iff out
   1.147      public:
   1.148        EdgeIt() : out_or_in(true) { } 
   1.149 -      EdgeIt(const Graph& _G, FlowMap& _flow, const CapacityMap& _capacity) : 
   1.150 -	G(&_G), flow(&_flow), capacity(&_capacity), out_or_in(true) { }
   1.151 -      //EdgeIt(const EdgeIt& e) : G(e.G), flow(e.flow), capacity(e.capacity), out(e.out), in(e.in), out_or_in(e.out_or_in) { }
   1.152 -      Number free() const { 
   1.153 -	if (out_or_in) { 
   1.154 -	  return (/*resG->*/capacity->get(out)-/*resG->*/flow->get(out)); 
   1.155 -	} else { 
   1.156 -	  return (/*resG->*/flow->get(in)); 
   1.157 -	}
   1.158 -      }
   1.159 -      bool valid() const { 
   1.160 -	return out_or_in && out.valid() || in.valid(); }
   1.161 -      void augment(Number a) const {
   1.162 -	if (out_or_in) { 
   1.163 -	  /*resG->*/flow->set(out, /*resG->*/flow->get(out)+a);
   1.164 -	} else { 
   1.165 -	  /*resG->*/flow->set(in, /*resG->*/flow->get(in)-a);
   1.166 -	}
   1.167 -      }
   1.168 -      void print() { 
   1.169 -	if (out_or_in) {
   1.170 -	  std::cout << "out "; 
   1.171 -	  if (out.valid()) 
   1.172 -	    std::cout << G->id(G->tail(out)) << "--"<< G->id(out) <<"->"<< G->id(G->head(out)); 
   1.173 -	  else 
   1.174 -	    std::cout << "invalid"; 
   1.175 -	}
   1.176 -	else {
   1.177 -	  std::cout << "in "; 
   1.178 -	  if (in.valid()) 
   1.179 -	    std::cout << G->id(G->head(in)) << "<-"<< G->id(in) <<"--"<< G->id(G->tail(in)); 
   1.180 -	  else 
   1.181 -	    std::cout << "invalid"; 
   1.182 -	}
   1.183 -	std::cout << std::endl;
   1.184 -      }
   1.185 +//       bool valid() const { 
   1.186 +// 	return out_or_in && out.valid() || in.valid(); }
   1.187      };
   1.188  
   1.189 -    Number free(OldOutEdgeIt out) const { 
   1.190 -      return (/*resG->*/capacity->get(out)-/*resG->*/flow->get(out)); 
   1.191 -    }
   1.192 -    Number free(OldInEdgeIt in) const { 
   1.193 -      return (/*resG->*/flow->get(in)); 
   1.194 -    }
   1.195  
   1.196      class OutEdgeIt : public EdgeIt {
   1.197        friend class ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>;
   1.198      public:
   1.199        OutEdgeIt() { }
   1.200 +      //FIXME
   1.201 +      OutEdgeIt(const EdgeIt& e) : EdgeIt(e) { }
   1.202      private:
   1.203 -      OutEdgeIt(const Graph& _G, NodeIt v, FlowMap& _flow, const CapacityMap& _capacity) : EdgeIt(_G, _flow, _capacity) { 
   1.204 -	//out=/*resG->*/G->template first<OldOutEdgeIt>(v);
   1.205 -	G->getFirst(out, v);
   1.206 -	while( out.valid() && !(EdgeIt::free()>0) ) { ++out; }
   1.207 +      OutEdgeIt(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& resG, NodeIt v) : EdgeIt() { 
   1.208 +	resG.G->getFirst(out, v);
   1.209 +	while( out.valid() && !(resG.free(out)>0) ) { ++out; }
   1.210  	if (!out.valid()) {
   1.211  	  out_or_in=0;
   1.212 -	  //in=/*resG->*/G->template first<OldInEdgeIt>(v);
   1.213 -	  G->getFirst(in, v);
   1.214 -	  while( in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.215 +	  resG.G->getFirst(in, v);
   1.216 +	  while( in.valid() && !(resG.free(in)>0) ) { ++in; }
   1.217  	}
   1.218        }
   1.219 -    public:
   1.220 -      OutEdgeIt& operator++() { 
   1.221 -	if (out_or_in) {
   1.222 -	  NodeIt v=/*resG->*/G->aNode(out);
   1.223 -	  ++out;
   1.224 -	  while( out.valid() && !(EdgeIt::free()>0) ) { ++out; }
   1.225 -	  if (!out.valid()) {
   1.226 -	    out_or_in=0;
   1.227 -	    G->getFirst(in, v); //=/*resG->*/G->template first<OldInEdgeIt>(v);
   1.228 -	    while( in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.229 -	  }
   1.230 -	} else {
   1.231 -	  ++in;
   1.232 -	  while( in.valid() && !(EdgeIt::free()>0) ) { ++in; } 
   1.233 -	}
   1.234 -	return *this; 
   1.235 -      }
   1.236 +//     public:
   1.237 +//       OutEdgeIt& operator++() { 
   1.238 +// 	if (out_or_in) {
   1.239 +// 	  NodeIt v=/*resG->*/G->aNode(out);
   1.240 +// 	  ++out;
   1.241 +// 	  while( out.valid() && !(EdgeIt::free()>0) ) { ++out; }
   1.242 +// 	  if (!out.valid()) {
   1.243 +// 	    out_or_in=0;
   1.244 +// 	    G->getFirst(in, v); 
   1.245 +// 	    while( in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.246 +// 	  }
   1.247 +// 	} else {
   1.248 +// 	  ++in;
   1.249 +// 	  while( in.valid() && !(EdgeIt::free()>0) ) { ++in; } 
   1.250 +// 	}
   1.251 +// 	return *this; 
   1.252 +//       }
   1.253      };
   1.254  
   1.255      class EachEdgeIt : public EdgeIt {
   1.256 @@ -497,67 +455,66 @@
   1.257      public:
   1.258        EachEdgeIt() { }
   1.259        //EachEdgeIt(const EachEdgeIt& e) : EdgeIt(e), v(e.v) { }
   1.260 -      EachEdgeIt(const Graph& _G, FlowMap& _flow, const CapacityMap& _capacity) : EdgeIt(_G, _flow, _capacity) { 
   1.261 -	out_or_in=true;
   1.262 -	G->getFirst(v);
   1.263 -	if (v.valid()) G->getFirst(out, v); else out=OldOutEdgeIt();
   1.264 -	while (out.valid() && !(EdgeIt::free()>0) ) { ++out; }
   1.265 +      EachEdgeIt(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& resG) : EdgeIt() { 
   1.266 +	resG.G->getFirst(v);
   1.267 +	if (v.valid()) resG.G->getFirst(out, v); else out=OldOutEdgeIt();
   1.268 +	while (out.valid() && !(resG.free(out)>0) ) { ++out; }
   1.269  	while (v.valid() && !out.valid()) { 
   1.270  	  ++v; 
   1.271 -	  if (v.valid()) G->getFirst(out, v); 
   1.272 -	  while (out.valid() && !(EdgeIt::free()>0) ) { ++out; }
   1.273 +	  if (v.valid()) resG.G->getFirst(out, v); 
   1.274 +	  while (out.valid() && !(resG.free(out)>0) ) { ++out; }
   1.275  	}
   1.276  	if (!out.valid()) {
   1.277  	  out_or_in=0;
   1.278 -	  G->getFirst(v);
   1.279 -	  if (v.valid()) G->getFirst(in, v); else in=OldInEdgeIt();
   1.280 -	  while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.281 +	  resG.G->getFirst(v);
   1.282 +	  if (v.valid()) resG.G->getFirst(in, v); else in=OldInEdgeIt();
   1.283 +	  while (in.valid() && !(resG.free(in)>0) ) { ++in; }
   1.284  	  while (v.valid() && !in.valid()) { 
   1.285  	    ++v; 
   1.286 -	    if (v.valid()) G->getFirst(in, v); 
   1.287 -	    while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.288 +	    if (v.valid()) resG.G->getFirst(in, v); 
   1.289 +	    while (in.valid() && !(resG.free(in)>0) ) { ++in; }
   1.290  	  }
   1.291  	}
   1.292        }
   1.293 -      EachEdgeIt& operator++() { 
   1.294 -	if (out_or_in) {
   1.295 -	  ++out;
   1.296 -	  while (out.valid() && !(EdgeIt::free()>0) ) { ++out; }
   1.297 -	  while (v.valid() && !out.valid()) { 
   1.298 -	    ++v; 
   1.299 -	    if (v.valid()) G->getFirst(out, v); 
   1.300 -	    while (out.valid() && !(EdgeIt::free()>0) ) { ++out; }
   1.301 -	  }
   1.302 -	  if (!out.valid()) {
   1.303 -	    out_or_in=0;
   1.304 -	    G->getFirst(v);
   1.305 -	    if (v.valid()) G->getFirst(in, v); else in=OldInEdgeIt();
   1.306 -	    while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.307 -	    while (v.valid() && !in.valid()) { 
   1.308 -	      ++v; 
   1.309 -	      if (v.valid()) G->getFirst(in, v); 
   1.310 -	      while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.311 -	    }  
   1.312 -	  }
   1.313 -	} else {
   1.314 -	  ++in;
   1.315 -	  while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.316 -	  while (v.valid() && !in.valid()) { 
   1.317 -	    ++v; 
   1.318 -	    if (v.valid()) G->getFirst(in, v); 
   1.319 -	    while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.320 -	  }
   1.321 -	}
   1.322 -	return *this;
   1.323 -      }
   1.324 +//       EachEdgeIt& operator++() { 
   1.325 +// 	if (out_or_in) {
   1.326 +// 	  ++out;
   1.327 +// 	  while (out.valid() && !(EdgeIt::free()>0) ) { ++out; }
   1.328 +// 	  while (v.valid() && !out.valid()) { 
   1.329 +// 	    ++v; 
   1.330 +// 	    if (v.valid()) G->getFirst(out, v); 
   1.331 +// 	    while (out.valid() && !(EdgeIt::free()>0) ) { ++out; }
   1.332 +// 	  }
   1.333 +// 	  if (!out.valid()) {
   1.334 +// 	    out_or_in=0;
   1.335 +// 	    G->getFirst(v);
   1.336 +// 	    if (v.valid()) G->getFirst(in, v); else in=OldInEdgeIt();
   1.337 +// 	    while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.338 +// 	    while (v.valid() && !in.valid()) { 
   1.339 +// 	      ++v; 
   1.340 +// 	      if (v.valid()) G->getFirst(in, v); 
   1.341 +// 	      while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.342 +// 	    }  
   1.343 +// 	  }
   1.344 +// 	} else {
   1.345 +// 	  ++in;
   1.346 +// 	  while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.347 +// 	  while (v.valid() && !in.valid()) { 
   1.348 +// 	    ++v; 
   1.349 +// 	    if (v.valid()) G->getFirst(in, v); 
   1.350 +// 	    while (in.valid() && !(EdgeIt::free()>0) ) { ++in; }
   1.351 +// 	  }
   1.352 +// 	}
   1.353 +// 	return *this;
   1.354 +//       }
   1.355      };
   1.356  
   1.357 -    void getFirst(EachNodeIt& v) const { G->getFirst(v); }
   1.358 -    void getFirst(OutEdgeIt& e, NodeIt v) const { 
   1.359 -      e=OutEdgeIt(*G, v, *flow, *capacity); 
   1.360 +    EachNodeIt& getFirst(EachNodeIt& v) const { G->getFirst(v); }
   1.361 +    OutEdgeIt& getFirst(OutEdgeIt& e, NodeIt v) const { 
   1.362 +      e=OutEdgeIt(*this, v); 
   1.363      }
   1.364 -    void getFirst(EachEdgeIt& e) const { 
   1.365 -      e=EachEdgeIt(*G, *flow, *capacity); 
   1.366 +    EachEdgeIt& getFirst(EachEdgeIt& e) const { 
   1.367 +      e=EachEdgeIt(*this); 
   1.368      }
   1.369     
   1.370      EachNodeIt& next(EachNodeIt& n) const { return G->next(n); }
   1.371 @@ -566,15 +523,15 @@
   1.372        if (e.out_or_in) {
   1.373  	NodeIt v=G->aNode(e.out);
   1.374  	++(e.out);
   1.375 -	while( G->valid(e.out) && !(e.free()>0) ) { ++(e.out); }
   1.376 +	while( G->valid(e.out) && !(free(e.out)>0) ) { ++(e.out); }
   1.377  	if (!G->valid(e.out)) {
   1.378  	  e.out_or_in=0;
   1.379 -	  G->getFirst(e.in, v); //=/*resG->*/G->template first<OldInEdgeIt>(v);
   1.380 -	  while( G->valid(e.in) && !(e.free()>0) ) { ++(e.in); }
   1.381 +	  G->getFirst(e.in, v); 
   1.382 +	  while( G->valid(e.in) && !(free(e.in)>0) ) { ++(e.in); }
   1.383  	}
   1.384        } else {
   1.385  	++(e.in);
   1.386 -	while( G->valid(e.in) && !(e.free()>0) ) { ++(e.in); } 
   1.387 +	while( G->valid(e.in) && !(free(e.in)>0) ) { ++(e.in); } 
   1.388        }
   1.389        return e;
   1.390      }
   1.391 @@ -582,30 +539,30 @@
   1.392      EachEdgeIt& next(EachEdgeIt& e) const { 
   1.393        if (e.out_or_in) {
   1.394  	++(e.out);
   1.395 -	while (G->valid(e.out) && !(e.free()>0) ) { ++(e.out); }
   1.396 +	while (G->valid(e.out) && !(free(e.out)>0) ) { ++(e.out); }
   1.397  	  while (G->valid(e.v) && !G->valid(e.out)) { 
   1.398  	    ++(e.v); 
   1.399  	    if (G->valid(e.v)) G->getFirst(e.out, e.v); 
   1.400 -	    while (G->valid(e.out) && !(e.free()>0) ) { ++(e.out); }
   1.401 +	    while (G->valid(e.out) && !(free(e.out)>0) ) { ++(e.out); }
   1.402  	  }
   1.403  	  if (!G->valid(e.out)) {
   1.404  	    e.out_or_in=0;
   1.405  	    G->getFirst(e.v);
   1.406  	    if (G->valid(e.v)) G->getFirst(e.in, e.v); else e.in=OldInEdgeIt();
   1.407 -	    while (G->valid(e.in) && !(e.free()>0) ) { ++(e.in); }
   1.408 +	    while (G->valid(e.in) && !(free(e.in)>0) ) { ++(e.in); }
   1.409  	    while (G->valid(e.v) && !G->valid(e.in)) { 
   1.410  	      ++(e.v); 
   1.411  	      if (G->valid(e.v)) G->getFirst(e.in, e.v); 
   1.412 -	      while (G->valid(e.in) && !(e.free()>0) ) { ++(e.in); }
   1.413 +	      while (G->valid(e.in) && !(free(e.in)>0) ) { ++(e.in); }
   1.414  	    }  
   1.415  	  }
   1.416  	} else {
   1.417  	  ++(e.in);
   1.418 -	  while (G->valid(e.in) && !(e.free()>0) ) { ++(e.in); }
   1.419 +	  while (G->valid(e.in) && !(free(e.in)>0) ) { ++(e.in); }
   1.420  	  while (G->valid(e.v) && !G->valid(e.in)) { 
   1.421  	    ++(e.v); 
   1.422  	    if (G->valid(e.v)) G->getFirst(e.in, e.v); 
   1.423 -	    while (G->valid(e.in) && !(e.free()>0) ) { ++(e.in); }
   1.424 +	    while (G->valid(e.in) && !(free(e.in)>0) ) { ++(e.in); }
   1.425  	  }
   1.426  	}
   1.427  	return e;
   1.428 @@ -642,6 +599,28 @@
   1.429      bool valid(EdgeIt e) const { 
   1.430        return e.out_or_in ? G->valid(e.out) : G->valid(e.in); }
   1.431  
   1.432 +    void augment(const EdgeIt& e, Number a) const {
   1.433 +      if (e.out_or_in)  
   1.434 +	flow->set(e.out, flow->get(e.out)+a);
   1.435 +      else  
   1.436 +	flow->set(e.in, flow->get(e.in)-a);
   1.437 +    }
   1.438 +
   1.439 +    Number free(const EdgeIt& e) const { 
   1.440 +      if (e.out_or_in) 
   1.441 +	return (capacity->get(e.out)-flow->get(e.out)); 
   1.442 +      else 
   1.443 +	return (flow->get(e.in)); 
   1.444 +    }
   1.445 +
   1.446 +    Number free(OldOutEdgeIt out) const { 
   1.447 +      return (capacity->get(out)-flow->get(out)); 
   1.448 +    }
   1.449 +    
   1.450 +    Number free(OldInEdgeIt in) const { 
   1.451 +      return (flow->get(in)); 
   1.452 +    }
   1.453 +
   1.454      template<typename T> class NodeMap : public Graph::NodeMap<T> { 
   1.455      public:
   1.456        NodeMap(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G) 
   1.457 @@ -679,6 +658,243 @@
   1.458  	  return backward_map.get(e.in); 
   1.459        }
   1.460      };
   1.461 +  };
   1.462 +
   1.463 +  template<typename Graph, typename Number, typename FlowMap, typename CapacityMap>
   1.464 +  class ErasingResGraphWrapper : public ResGraphWrapper<Graph, Number, FlowMap, CapacityMap> {
   1.465 +  protected:
   1.466 +    ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<typename ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::OutEdgeIt> first_out_edges;
   1.467 +    //ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<int> dist;
   1.468 +  public:
   1.469 +    ErasingResGraphWrapper(const Graph& _G, FlowMap& _flow, 
   1.470 +			   const CapacityMap& _capacity) : 
   1.471 +      ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>(_G, _flow, _capacity), 
   1.472 +      first_out_edges(*this) /*, dist(*this)*/ { 
   1.473 +      for(EachNodeIt n=this->template first<EachNodeIt>(); this->valid(n); this->next(n)) {
   1.474 +	OutEdgeIt e;
   1.475 +	ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::getFirst(e, n);
   1.476 +	first_out_edges.set(n, e);
   1.477 +      }
   1.478 +    }
   1.479 +
   1.480 +    //void setGraph(Graph& _graph) { graph = &_graph; }
   1.481 +    //Graph& getGraph() const { return (*graph); }
   1.482 +  
   1.483 +    //TrivGraphWrapper() : graph(0) { }
   1.484 +    //ErasingResGraphWrapper(Graph& _graph) : graph(&_graph) { }
   1.485 +
   1.486 +    //typedef Graph BaseGraph;
   1.487 +
   1.488 +    //typedef typename Graph::NodeIt NodeIt;
   1.489 +    //typedef typename Graph::EachNodeIt EachNodeIt;
   1.490 +
   1.491 +    //typedef typename Graph::EdgeIt EdgeIt;
   1.492 +    //typedef typename Graph::OutEdgeIt OutEdgeIt;
   1.493 +    //typedef typename Graph::InEdgeIt InEdgeIt;
   1.494 +    //typedef typename Graph::SymEdgeIt SymEdgeIt;
   1.495 +    //typedef typename Graph::EachEdgeIt EachEdgeIt;
   1.496 +
   1.497 +    typedef typename ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeIt NodeIt;
   1.498 +    typedef typename ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EachNodeIt EachNodeIt;
   1.499 +
   1.500 +    typedef typename ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EdgeIt EdgeIt;
   1.501 +    typedef typename ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::OutEdgeIt OutEdgeIt;
   1.502 +    //typedef typename ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::InEdgeIt InEdgeIt;
   1.503 +    //typedef typename Graph::SymEdgeIt SymEdgeIt;
   1.504 +    //typedef typename ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EachEdgeIt EachEdgeIt;
   1.505 +
   1.506 +    EachNodeIt& getFirst(EachNodeIt& n) const { 
   1.507 +      return ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::getFirst(n);
   1.508 +    }
   1.509 +
   1.510 +    OutEdgeIt& getFirst(OutEdgeIt& e, const NodeIt& n) const { 
   1.511 +      e=first_out_edges.get(n);
   1.512 +      return e;
   1.513 +    }
   1.514 +    
   1.515 +    //ROSSZ template<typename I> I& getFirst(I& i) const { return getFirst(i); }
   1.516 +    //ROSSZ template<typename I, typename P> I& getFirst(I& i, const P& p) const { 
   1.517 +    //  return getFirst(i, p); }
   1.518 +    
   1.519 +    //template<typename I> I getNext(const I& i) const { 
   1.520 +    //  return graph->getNext(i); }
   1.521 +    //template<typename I> I& next(I &i) const { return graph->next(i); }    
   1.522 +
   1.523 +    template< typename It > It first() const { 
   1.524 +      It e; getFirst(e); return e; }
   1.525 +
   1.526 +    template< typename It > It first(const NodeIt& v) const { 
   1.527 +      It e; getFirst(e, v); return e; }
   1.528 +
   1.529 +    //NodeIt head(const EdgeIt& e) const { return graph->head(e); }
   1.530 +    //NodeIt tail(const EdgeIt& e) const { return graph->tail(e); }
   1.531 +
   1.532 +    //template<typename I> bool valid(const I& i) const 
   1.533 +    //  { return graph->valid(i); }
   1.534 +  
   1.535 +    //int nodeNum() const { return graph->nodeNum(); }
   1.536 +    //int edgeNum() const { return graph->edgeNum(); }
   1.537 +  
   1.538 +    //template<typename I> NodeIt aNode(const I& e) const { 
   1.539 +    //  return graph->aNode(e); }
   1.540 +    //template<typename I> NodeIt bNode(const I& e) const { 
   1.541 +    //  return graph->bNode(e); }
   1.542 +  
   1.543 +    //NodeIt addNode() const { return graph->addNode(); }
   1.544 +    //EdgeIt addEdge(const NodeIt& tail, const NodeIt& head) const { 
   1.545 +    //  return graph->addEdge(tail, head); }
   1.546 +  
   1.547 +    //void erase(const OutEdgeIt& e) {
   1.548 +    //  first_out_edge(this->tail(e))=e;
   1.549 +    //}
   1.550 +    void erase(const EdgeIt& e) {
   1.551 +      OutEdgeIt f(e);
   1.552 +      next(f);
   1.553 +      first_out_edges.set(this->tail(e), f);
   1.554 +    }
   1.555 +    //template<typename I> void erase(const I& i) const { graph->erase(i); }
   1.556 +  
   1.557 +    //void clear() const { graph->clear(); }
   1.558 +    
   1.559 +    template<typename T> class NodeMap : public ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<T> { 
   1.560 +    public:
   1.561 +      NodeMap(const ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G) : 
   1.562 +	ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<T>(_G /*_G.getGraph()*/) { }
   1.563 +      NodeMap(const ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G, T a) : 
   1.564 +	ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<T>(_G /*_G.getGraph()*/, a) { }
   1.565 +    };
   1.566 +
   1.567 +    template<typename T> class EdgeMap : public ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EdgeMap<T> { 
   1.568 +    public:
   1.569 +      EdgeMap(const ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G) : 
   1.570 +	ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EdgeMap<T>(_G /*_G.getGraph()*/) { }
   1.571 +      EdgeMap(const ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G, T a) : 
   1.572 +	ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EdgeMap<T>(_G /*_G.getGraph()*/, a) { }
   1.573 +    };
   1.574 +  };
   1.575 +
   1.576 +  template<typename GraphWrapper> 
   1.577 +  class FilterGraphWrapper {
   1.578 +  };
   1.579 +
   1.580 +  template<typename Graph, typename Number, typename FlowMap, typename CapacityMap>
   1.581 +  class FilterGraphWrapper<ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap> > : public ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap> {
   1.582 +
   1.583 +    //Graph* graph;
   1.584 +  
   1.585 +  public:
   1.586 +    //typedef Graph BaseGraph;
   1.587 +
   1.588 +    typedef typename ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeIt NodeIt;
   1.589 +    typedef typename ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EachNodeIt EachNodeIt;
   1.590 +
   1.591 +    typedef typename ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EdgeIt EdgeIt;
   1.592 +    typedef typename ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::OutEdgeIt OutEdgeIt;
   1.593 +    //typedef typename ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::InEdgeIt InEdgeIt;
   1.594 +    //typedef typename Graph::SymEdgeIt SymEdgeIt;
   1.595 +    typedef typename ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EachEdgeIt EachEdgeIt;
   1.596 +
   1.597 +    //FilterGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<typename ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::OutEdgeIt> first_out_edges;
   1.598 +    
   1.599 +  public:
   1.600 +    FilterGraphWrapper(const Graph& _G, FlowMap& _flow, 
   1.601 +			   const CapacityMap& _capacity) : 
   1.602 +      ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>(_G, _flow, _capacity), dist(*this) { 
   1.603 +    }
   1.604 +
   1.605 +    OutEdgeIt& getFirst(OutEdgeIt& e, const NodeIt& n) const {
   1.606 +      ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::getFirst(e, n);
   1.607 +      while (valid(e) && (dist.get(tail(e))+1!=dist.get(head(e)))) 
   1.608 +	ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::next(e);
   1.609 +      return e;
   1.610 +    }
   1.611 +
   1.612 +    EachNodeIt& next(EachNodeIt& e) const {
   1.613 +      return ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::next(e);
   1.614 +    }
   1.615 +
   1.616 +    OutEdgeIt& next(OutEdgeIt& e) const {
   1.617 +      ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::next(e);
   1.618 +      while (valid(e) && (dist.get(tail(e))+1!=dist.get(head(e)))) 
   1.619 +	ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::next(e);
   1.620 +      return e;
   1.621 +    }
   1.622 +
   1.623 +    EachNodeIt& getFirst(EachNodeIt& n) const {
   1.624 +      return ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::getFirst(n);
   1.625 +    }
   1.626 +
   1.627 +    void erase(const EdgeIt& e) {
   1.628 +      OutEdgeIt f(e);
   1.629 +      ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::next(f);
   1.630 +      while (valid(f) && (dist.get(tail(f))+1!=dist.get(head(f)))) 
   1.631 +	ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::next(f);
   1.632 +      first_out_edges.set(this->tail(e), f);
   1.633 +    }
   1.634 +
   1.635 +    //TrivGraphWrapper() : graph(0) { }
   1.636 +    //TrivGraphWrapper(Graph& _graph) : graph(&_graph) { }
   1.637 +
   1.638 +    //void setGraph(Graph& _graph) { graph = &_graph; }
   1.639 +    //Graph& getGraph() const { return (*graph); }
   1.640 +    
   1.641 +    //template<typename I> I& getFirst(I& i) const { return graph->getFirst(i); }
   1.642 +    //template<typename I, typename P> I& getFirst(I& i, const P& p) const { 
   1.643 +    //  return graph->getFirst(i, p); }
   1.644 +    
   1.645 +    //template<typename I> I getNext(const I& i) const { 
   1.646 +    //  return graph->getNext(i); }
   1.647 +    //template<typename I> I& next(I &i) const { return graph->next(i); }    
   1.648 +
   1.649 +    template< typename It > It first() const { 
   1.650 +      It e; getFirst(e); return e; }
   1.651 +
   1.652 +    template< typename It > It first(const NodeIt& v) const { 
   1.653 +      It e; getFirst(e, v); return e; }
   1.654 +
   1.655 +    //NodeIt head(const EdgeIt& e) const { return graph->head(e); }
   1.656 +    //NodeIt tail(const EdgeIt& e) const { return graph->tail(e); }
   1.657 +
   1.658 +    //template<typename I> bool valid(const I& i) const 
   1.659 +    //  { return graph->valid(i); }
   1.660 +  
   1.661 +    //template<typename I> void setInvalid(const I &i);
   1.662 +    //{ return graph->setInvalid(i); }
   1.663 +
   1.664 +    //int nodeNum() const { return graph->nodeNum(); }
   1.665 +    //int edgeNum() const { return graph->edgeNum(); }
   1.666 +  
   1.667 +    //template<typename I> NodeIt aNode(const I& e) const { 
   1.668 +    //  return graph->aNode(e); }
   1.669 +    //template<typename I> NodeIt bNode(const I& e) const { 
   1.670 +    //  return graph->bNode(e); }
   1.671 +  
   1.672 +    //NodeIt addNode() const { return graph->addNode(); }
   1.673 +    //EdgeIt addEdge(const NodeIt& tail, const NodeIt& head) const { 
   1.674 +    //  return graph->addEdge(tail, head); }
   1.675 +  
   1.676 +    //template<typename I> void erase(const I& i) const { graph->erase(i); }
   1.677 +  
   1.678 +    //void clear() const { graph->clear(); }
   1.679 +    
   1.680 +    template<typename T> class NodeMap : public ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<T> { 
   1.681 +    public:
   1.682 +      NodeMap(const FilterGraphWrapper<ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap> >& _G) : 
   1.683 +	ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<T>(_G /*_G.getGraph()*/) { }
   1.684 +      NodeMap(const FilterGraphWrapper<ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap> >& _G, T a) : 
   1.685 +	ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<T>(_G /*_G.getGraph()*/, a) { }
   1.686 +    };
   1.687 +
   1.688 +    template<typename T> class EdgeMap : public ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EdgeMap<T> { 
   1.689 +    public:
   1.690 +      EdgeMap(const FilterGraphWrapper<ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap> >& _G) : 
   1.691 +	ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EdgeMap<T>(_G /*_G.getGraph()*/) { }
   1.692 +      EdgeMap(const FilterGraphWrapper<ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap> >& _G, T a) : 
   1.693 +	ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::EdgeMap<T>(_G /*_G.getGraph()*/, a) { }
   1.694 +    };
   1.695 +
   1.696 +  public:
   1.697 +    ErasingResGraphWrapper<Graph, Number, FlowMap, CapacityMap>::NodeMap<int> dist;
   1.698  
   1.699    };
   1.700