1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
---|
2 | * |
---|
3 | * This file is a part of LEMON, a generic C++ optimization library. |
---|
4 | * |
---|
5 | * Copyright (C) 2015-2017 |
---|
6 | * EMAXA Kutato-fejleszto Kft. (EMAXA Research Ltd.) |
---|
7 | * |
---|
8 | * Permission to use, modify and distribute this software is granted |
---|
9 | * provided that this copyright notice appears in all copies. For |
---|
10 | * precise terms see the accompanying LICENSE file. |
---|
11 | * |
---|
12 | * This software is provided "AS IS" with no warranty of any kind, |
---|
13 | * express or implied, and with no claim as to its suitability for any |
---|
14 | * purpose. |
---|
15 | * |
---|
16 | */ |
---|
17 | |
---|
18 | #include <lemon/vf2pp.h> |
---|
19 | #include <lemon/concepts/digraph.h> |
---|
20 | #include <lemon/smart_graph.h> |
---|
21 | #include <lemon/lgf_reader.h> |
---|
22 | #include <lemon/concepts/maps.h> |
---|
23 | #include <lemon/maps.h> |
---|
24 | #include <lemon/list_graph.h> |
---|
25 | |
---|
26 | #include <test/test_tools.h> |
---|
27 | #include <sstream> |
---|
28 | |
---|
29 | using namespace lemon; |
---|
30 | |
---|
31 | char petersen_lgf[] = |
---|
32 | "@nodes\n" |
---|
33 | "label col1 col2\n" |
---|
34 | "0 1 1\n" |
---|
35 | "1 1 2\n" |
---|
36 | "2 1 3\n" |
---|
37 | "3 1 4\n" |
---|
38 | "4 2 5\n" |
---|
39 | "5 2 1\n" |
---|
40 | "6 2 2\n" |
---|
41 | "7 2 3\n" |
---|
42 | "8 2 4\n" |
---|
43 | "9 2 5\n" |
---|
44 | "@arcs\n" |
---|
45 | " -\n" |
---|
46 | "0 1\n" |
---|
47 | "1 2\n" |
---|
48 | "2 3\n" |
---|
49 | "3 4\n" |
---|
50 | "4 0\n" |
---|
51 | "0 5\n" |
---|
52 | "1 6\n" |
---|
53 | "2 7\n" |
---|
54 | "3 8\n" |
---|
55 | "4 9\n" |
---|
56 | "5 8\n" |
---|
57 | "5 7\n" |
---|
58 | "9 6\n" |
---|
59 | "9 7\n" |
---|
60 | "6 8\n"; |
---|
61 | |
---|
62 | char c5_lgf[] = |
---|
63 | "@nodes\n" |
---|
64 | "label col\n" |
---|
65 | "0 1\n" |
---|
66 | "1 2\n" |
---|
67 | "2 3\n" |
---|
68 | "3 4\n" |
---|
69 | "4 5\n" |
---|
70 | "@arcs\n" |
---|
71 | " -\n" |
---|
72 | "0 1\n" |
---|
73 | "1 2\n" |
---|
74 | "2 3\n" |
---|
75 | "3 4\n" |
---|
76 | "4 0\n"; |
---|
77 | |
---|
78 | char c7_lgf[] = |
---|
79 | "@nodes\n" |
---|
80 | "label\n" |
---|
81 | "0\n" |
---|
82 | "1\n" |
---|
83 | "2\n" |
---|
84 | "3\n" |
---|
85 | "4\n" |
---|
86 | "5\n" |
---|
87 | "6\n" |
---|
88 | "@arcs\n" |
---|
89 | " -\n" |
---|
90 | "0 1\n" |
---|
91 | "1 2\n" |
---|
92 | "2 3\n" |
---|
93 | "3 4\n" |
---|
94 | "4 5\n" |
---|
95 | "5 6\n" |
---|
96 | "6 0\n"; |
---|
97 | |
---|
98 | char c10_lgf[] = |
---|
99 | "@nodes\n" |
---|
100 | "label\n" |
---|
101 | "0\n" |
---|
102 | "1\n" |
---|
103 | "2\n" |
---|
104 | "3\n" |
---|
105 | "4\n" |
---|
106 | "5\n" |
---|
107 | "6\n" |
---|
108 | "7\n" |
---|
109 | "8\n" |
---|
110 | "9\n" |
---|
111 | "@arcs\n" |
---|
112 | " -\n" |
---|
113 | "0 1\n" |
---|
114 | "1 2\n" |
---|
115 | "2 3\n" |
---|
116 | "3 4\n" |
---|
117 | "4 5\n" |
---|
118 | "5 6\n" |
---|
119 | "6 7\n" |
---|
120 | "7 8\n" |
---|
121 | "8 9\n" |
---|
122 | "9 0\n"; |
---|
123 | |
---|
124 | char p10_lgf[] = |
---|
125 | "@nodes\n" |
---|
126 | "label\n" |
---|
127 | "0\n" |
---|
128 | "1\n" |
---|
129 | "2\n" |
---|
130 | "3\n" |
---|
131 | "4\n" |
---|
132 | "5\n" |
---|
133 | "6\n" |
---|
134 | "7\n" |
---|
135 | "8\n" |
---|
136 | "9\n" |
---|
137 | "@arcs\n" |
---|
138 | " -\n" |
---|
139 | "0 1\n" |
---|
140 | "1 2\n" |
---|
141 | "2 3\n" |
---|
142 | "3 4\n" |
---|
143 | "4 5\n" |
---|
144 | "5 6\n" |
---|
145 | "6 7\n" |
---|
146 | "7 8\n" |
---|
147 | "8 9\n"; |
---|
148 | |
---|
149 | SmartGraph petersen, c5, c7, c10, p10; |
---|
150 | SmartGraph::NodeMap<int> petersen_col1(petersen); |
---|
151 | SmartGraph::NodeMap<int> petersen_col2(petersen); |
---|
152 | SmartGraph::NodeMap<int> c5_col(c5); |
---|
153 | |
---|
154 | void make_graphs(){ |
---|
155 | std::stringstream ss(petersen_lgf); |
---|
156 | graphReader(petersen, ss) |
---|
157 | .nodeMap("col1",petersen_col1) |
---|
158 | .nodeMap("col2",petersen_col2) |
---|
159 | .run(); |
---|
160 | |
---|
161 | ss.clear(); |
---|
162 | ss.str(""); |
---|
163 | ss<<c5_lgf; |
---|
164 | |
---|
165 | graphReader(c5, ss) |
---|
166 | .nodeMap("col",c5_col) |
---|
167 | .run(); |
---|
168 | |
---|
169 | ss.clear(); |
---|
170 | ss.str(""); |
---|
171 | ss<<c7_lgf; |
---|
172 | graphReader(c7, ss).run(); |
---|
173 | |
---|
174 | ss.clear(); |
---|
175 | ss.str(""); |
---|
176 | ss<<c10_lgf; |
---|
177 | graphReader(c10, ss).run(); |
---|
178 | |
---|
179 | ss.clear(); |
---|
180 | ss.str(""); |
---|
181 | ss<<p10_lgf; |
---|
182 | graphReader(p10, ss).run(); |
---|
183 | |
---|
184 | } |
---|
185 | |
---|
186 | class IntConvertible1{ |
---|
187 | public: |
---|
188 | operator int(){ |
---|
189 | return 0; |
---|
190 | } |
---|
191 | }; |
---|
192 | |
---|
193 | class IntConvertible2{ |
---|
194 | public: |
---|
195 | operator int(){ |
---|
196 | return 0; |
---|
197 | } |
---|
198 | }; |
---|
199 | |
---|
200 | template<class G1,class G2> |
---|
201 | void checkVf2Compile() { |
---|
202 | G1 g; |
---|
203 | G2 h; |
---|
204 | concepts::ReadWriteMap<typename G1::Node, typename G2::Node> r; |
---|
205 | bool succ; |
---|
206 | ::lemon::ignore_unused_variable_warning(succ); |
---|
207 | |
---|
208 | succ = vf2pp(g,h).run(); |
---|
209 | succ = vf2pp(g,h).induced().run(); |
---|
210 | succ = vf2pp(g,h).iso().run(); |
---|
211 | succ = vf2pp(g,h).mapping(r).run(); |
---|
212 | succ = vf2pp(g,h).induced().mapping(r).run(); |
---|
213 | succ = vf2pp(g,h).iso().mapping(r).run(); |
---|
214 | |
---|
215 | |
---|
216 | concepts::ReadMap<typename G1::Node, int> c1; |
---|
217 | concepts::ReadMap<typename G2::Node, int> c2; |
---|
218 | Vf2pp<G1,G2,concepts::ReadWriteMap<typename G1::Node, typename G2::Node>, |
---|
219 | concepts::ReadMap<typename G1::Node, int>, |
---|
220 | concepts::ReadMap<typename G2::Node, int> > |
---|
221 | myVf2pp(g,h,r,c1,c2); |
---|
222 | myVf2pp.find(); |
---|
223 | |
---|
224 | succ = vf2pp(g,h).nodeLabels(c1,c2).mapping(r).run(); |
---|
225 | succ = vf2pp(g,h).nodeLabels(c1,c2) |
---|
226 | .mapping(r).run(); |
---|
227 | |
---|
228 | |
---|
229 | concepts::ReadMap<typename G1::Node, char> c1_c; |
---|
230 | concepts::ReadMap<typename G2::Node, char> c2_c; |
---|
231 | Vf2pp<G1,G2,concepts::ReadWriteMap<typename G1::Node, typename G2::Node>, |
---|
232 | concepts::ReadMap<typename G1::Node, char>, |
---|
233 | concepts::ReadMap<typename G2::Node, char> > |
---|
234 | myVf2pp_c(g,h,r,c1_c,c2_c); |
---|
235 | myVf2pp_c.find(); |
---|
236 | |
---|
237 | succ = vf2pp(g,h).nodeLabels(c1_c,c2_c).mapping(r).run(); |
---|
238 | succ = vf2pp(g,h).nodeLabels(c1_c,c2_c) |
---|
239 | .mapping(r).run(); |
---|
240 | |
---|
241 | |
---|
242 | concepts::ReadMap<typename G1::Node, IntConvertible1> c1_IntConv; |
---|
243 | concepts::ReadMap<typename G2::Node, IntConvertible2> c2_IntConv; |
---|
244 | Vf2pp<G1,G2,concepts::ReadWriteMap<typename G1::Node, typename G2::Node>, |
---|
245 | concepts::ReadMap<typename G1::Node, IntConvertible1>, |
---|
246 | concepts::ReadMap<typename G2::Node, IntConvertible2> > |
---|
247 | myVf2pp_IntConv(g,h,r,c1_IntConv,c2_IntConv); |
---|
248 | myVf2pp_IntConv.find(); |
---|
249 | |
---|
250 | succ = vf2pp(g,h).nodeLabels(c1_IntConv,c2_IntConv).mapping(r).run(); |
---|
251 | succ = vf2pp(g,h).nodeLabels(c1_IntConv,c2_IntConv) |
---|
252 | .mapping(r).run(); |
---|
253 | } |
---|
254 | |
---|
255 | void justCompile() { |
---|
256 | checkVf2Compile<concepts::Graph,concepts::Graph>(); |
---|
257 | checkVf2Compile<concepts::Graph,SmartGraph>(); |
---|
258 | checkVf2Compile<SmartGraph,concepts::Graph>(); |
---|
259 | } |
---|
260 | |
---|
261 | template<class G1, class G2, class I> |
---|
262 | void checkSub(const G1 &g1, const G2 &g2, const I &i) { |
---|
263 | { |
---|
264 | std::set<typename G2::Node> image; |
---|
265 | for(typename G1::NodeIt n(g1);n!=INVALID;++n){ |
---|
266 | check(i[n]!=INVALID, "Wrong isomorphism: incomplete mapping."); |
---|
267 | check(image.count(i[n])==0,"Wrong isomorphism: not injective."); |
---|
268 | image.insert(i[n]); |
---|
269 | } |
---|
270 | } |
---|
271 | for(typename G1::EdgeIt e(g1);e!=INVALID;++e) |
---|
272 | check(findEdge(g2,i[g1.u(e)],i[g1.v(e)])!=INVALID, |
---|
273 | "Wrong isomorphism: missing edge(checkSub)."); |
---|
274 | } |
---|
275 | |
---|
276 | template<class G1, class G2, class I> |
---|
277 | void checkInd(const G1 &g1, const G2 &g2, const I &i) { |
---|
278 | std::set<typename G2::Node> image; |
---|
279 | for(typename G1::NodeIt n(g1);n!=INVALID;++n) { |
---|
280 | check(i[n]!=INVALID, "Wrong isomorphism: incomplete mapping."); |
---|
281 | check(image.count(i[n])==0,"Wrong isomorphism: not injective."); |
---|
282 | image.insert(i[n]); |
---|
283 | } |
---|
284 | for(typename G1::NodeIt n(g1); n!=INVALID; ++n) |
---|
285 | for(typename G1::NodeIt m(g1); m!=INVALID; ++m) |
---|
286 | if((findEdge(g1,n,m)==INVALID) != (findEdge(g2,i[n],i[m])==INVALID)) { |
---|
287 | std::cout << "Wrong isomorphism: edge mismatch"; |
---|
288 | exit(1); |
---|
289 | } |
---|
290 | } |
---|
291 | |
---|
292 | template<class G1,class G2> |
---|
293 | int checkSub(const G1 &g1, const G2 &g2) { |
---|
294 | typename G1:: template NodeMap<typename G2::Node> iso(g1,INVALID); |
---|
295 | if(vf2pp(g1,g2).mapping(iso).run()){ |
---|
296 | checkSub(g1,g2,iso); |
---|
297 | return true; |
---|
298 | } |
---|
299 | else |
---|
300 | return false; |
---|
301 | } |
---|
302 | |
---|
303 | template<class G1,class G2> |
---|
304 | int checkInd(const G1 &g1, const G2 &g2) { |
---|
305 | typename G1:: template NodeMap<typename G2::Node> iso(g1,INVALID); |
---|
306 | if(vf2pp(g1,g2).induced().mapping(iso).run()) { |
---|
307 | checkInd(g1,g2,iso); |
---|
308 | return true; |
---|
309 | } |
---|
310 | else |
---|
311 | return false; |
---|
312 | } |
---|
313 | |
---|
314 | template<class G1,class G2> |
---|
315 | int checkIso(const G1 &g1, const G2 &g2) { |
---|
316 | typename G1:: template NodeMap<typename G2::Node> iso(g1,INVALID); |
---|
317 | if(vf2pp(g1,g2).iso().mapping(iso).run()) { |
---|
318 | check(countNodes(g1)==countNodes(g2), |
---|
319 | "Wrong iso alg.: they are not isomophic."); |
---|
320 | checkInd(g1,g2,iso); |
---|
321 | return true; |
---|
322 | } |
---|
323 | else |
---|
324 | return false; |
---|
325 | } |
---|
326 | |
---|
327 | template<class G1, class G2, class L1, class L2, class I> |
---|
328 | void checkLabel(const G1 &g1, const G2 &, |
---|
329 | const L1 &l1, const L2 &l2,const I &i) { |
---|
330 | for(typename G1::NodeIt n(g1);n!=INVALID;++n) |
---|
331 | check(l1[n]==l2[i[n]],"Wrong isomorphism: label mismatch."); |
---|
332 | } |
---|
333 | |
---|
334 | template<class G1,class G2,class L1,class L2> |
---|
335 | int checkSub(const G1 &g1, const G2 &g2, const L1 &l1, const L2 &l2) { |
---|
336 | typename G1:: template NodeMap<typename G2::Node> iso(g1,INVALID); |
---|
337 | if(vf2pp(g1,g2).nodeLabels(l1,l2).mapping(iso).run()) { |
---|
338 | checkSub(g1,g2,iso); |
---|
339 | checkLabel(g1,g2,l1,l2,iso); |
---|
340 | return true; |
---|
341 | } |
---|
342 | else |
---|
343 | return false; |
---|
344 | } |
---|
345 | |
---|
346 | int main() { |
---|
347 | make_graphs(); |
---|
348 | // justCompile(); |
---|
349 | check(checkSub(c5,petersen), "There should exist a C5->Petersen mapping."); |
---|
350 | check(!checkSub(c7,petersen), |
---|
351 | "There should not exist a C7->Petersen mapping."); |
---|
352 | check(checkSub(p10,petersen), "There should exist a P10->Petersen mapping."); |
---|
353 | check(!checkSub(c10,petersen), |
---|
354 | "There should not exist a C10->Petersen mapping."); |
---|
355 | check(checkSub(petersen,petersen), |
---|
356 | "There should exist a Petersen->Petersen mapping."); |
---|
357 | |
---|
358 | check(checkInd(c5,petersen), |
---|
359 | "There should exist a C5->Petersen spanned mapping."); |
---|
360 | check(!checkInd(c7,petersen), |
---|
361 | "There should exist a C7->Petersen spanned mapping."); |
---|
362 | check(!checkInd(p10,petersen), |
---|
363 | "There should not exist a P10->Petersen spanned mapping."); |
---|
364 | check(!checkInd(c10,petersen), |
---|
365 | "There should not exist a C10->Petersen spanned mapping."); |
---|
366 | check(checkInd(petersen,petersen), |
---|
367 | "There should exist a Petersen->Petersen spanned mapping."); |
---|
368 | |
---|
369 | check(!checkSub(petersen,c10), |
---|
370 | "There should not exist a Petersen->C10 mapping."); |
---|
371 | check(checkSub(p10,c10), |
---|
372 | "There should exist a P10->C10 mapping."); |
---|
373 | check(!checkInd(p10,c10), |
---|
374 | "There should not exist a P10->C10 spanned mapping."); |
---|
375 | check(!checkSub(c10,p10), |
---|
376 | "There should not exist a C10->P10 mapping."); |
---|
377 | |
---|
378 | check(!checkIso(p10,c10), |
---|
379 | "P10 and C10 are not isomorphic."); |
---|
380 | check(checkIso(c10,c10), |
---|
381 | "C10 and C10 are isomorphic."); |
---|
382 | |
---|
383 | check(!vf2pp(p10,c10).iso().run(), |
---|
384 | "P10 and C10 are not isomorphic."); |
---|
385 | check(vf2pp(c10,c10).iso().run(), |
---|
386 | "C10 and C10 are isomorphic."); |
---|
387 | |
---|
388 | check(!checkSub(c5,petersen,c5_col,petersen_col1), |
---|
389 | "There should exist a C5->Petersen mapping."); |
---|
390 | check(checkSub(c5,petersen,c5_col,petersen_col2), |
---|
391 | "There should exist a C5->Petersen mapping."); |
---|
392 | } |
---|