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< a href = "io_8h.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a id = "l00001" name = "l00001" > < / a > < span class = "lineno" > 1< / span > < span class = "comment" > // Copyright 2010-2021 Google LLC< / span > < / div >
< div class = "line" > < a id = "l00002" name = "l00002" > < / a > < span class = "lineno" > 2< / span > < span class = "comment" > // Licensed under the Apache License, Version 2.0 (the " License" );< / span > < / div >
< div class = "line" > < a id = "l00003" name = "l00003" > < / a > < span class = "lineno" > 3< / span > < span class = "comment" > // you may not use this file except in compliance with the License.< / span > < / div >
< div class = "line" > < a id = "l00004" name = "l00004" > < / a > < span class = "lineno" > 4< / span > < span class = "comment" > // You may obtain a copy of the License at< / span > < / div >
< div class = "line" > < a id = "l00005" name = "l00005" > < / a > < span class = "lineno" > 5< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00006" name = "l00006" > < / a > < span class = "lineno" > 6< / span > < span class = "comment" > // http://www.apache.org/licenses/LICENSE-2.0< / span > < / div >
< div class = "line" > < a id = "l00007" name = "l00007" > < / a > < span class = "lineno" > 7< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00008" name = "l00008" > < / a > < span class = "lineno" > 8< / span > < span class = "comment" > // Unless required by applicable law or agreed to in writing, software< / span > < / div >
< div class = "line" > < a id = "l00009" name = "l00009" > < / a > < span class = "lineno" > 9< / span > < span class = "comment" > // distributed under the License is distributed on an " AS IS" BASIS,< / span > < / div >
< div class = "line" > < a id = "l00010" name = "l00010" > < / a > < span class = "lineno" > 10< / span > < span class = "comment" > // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.< / span > < / div >
< div class = "line" > < a id = "l00011" name = "l00011" > < / a > < span class = "lineno" > 11< / span > < span class = "comment" > // See the License for the specific language governing permissions and< / span > < / div >
< div class = "line" > < a id = "l00012" name = "l00012" > < / a > < span class = "lineno" > 12< / span > < span class = "comment" > // limitations under the License.< / span > < / div >
< div class = "line" > < a id = "l00013" name = "l00013" > < / a > < span class = "lineno" > 13< / span > < / div >
< div class = "line" > < a id = "l00014" name = "l00014" > < / a > < span class = "lineno" > 14< / span > < span class = "comment" > // A collections of i/o utilities for the Graph classes in ./graph.h.< / span > < / div >
< div class = "line" > < a id = "l00015" name = "l00015" > < / a > < span class = "lineno" > 15< / span > < / div >
< div class = "line" > < a id = "l00016" name = "l00016" > < / a > < span class = "lineno" > 16< / span > < span class = "preprocessor" > #ifndef UTIL_GRAPH_IO_H_< / span > < / div >
< div class = "line" > < a id = "l00017" name = "l00017" > < / a > < span class = "lineno" > 17< / span > < span class = "preprocessor" > #define UTIL_GRAPH_IO_H_< / span > < / div >
< div class = "line" > < a id = "l00018" name = "l00018" > < / a > < span class = "lineno" > 18< / span > < / div >
< div class = "line" > < a id = "l00019" name = "l00019" > < / a > < span class = "lineno" > 19< / span > < span class = "preprocessor" > #include < algorithm> < / span > < / div >
< div class = "line" > < a id = "l00020" name = "l00020" > < / a > < span class = "lineno" > 20< / span > < span class = "preprocessor" > #include < cstdint> < / span > < / div >
< div class = "line" > < a id = "l00021" name = "l00021" > < / a > < span class = "lineno" > 21< / span > < span class = "preprocessor" > #include < memory> < / span > < / div >
< div class = "line" > < a id = "l00022" name = "l00022" > < / a > < span class = "lineno" > 22< / span > < span class = "preprocessor" > #include < numeric> < / span > < / div >
< div class = "line" > < a id = "l00023" name = "l00023" > < / a > < span class = "lineno" > 23< / span > < span class = "preprocessor" > #include < string> < / span > < / div >
< div class = "line" > < a id = "l00024" name = "l00024" > < / a > < span class = "lineno" > 24< / span > < span class = "preprocessor" > #include < vector> < / span > < / div >
< div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > 25< / span > < / div >
< div class = "line" > < a id = "l00026" name = "l00026" > < / a > < span class = "lineno" > 26< / span > < span class = "preprocessor" > #include " absl/status/status.h" < / span > < / div >
< div class = "line" > < a id = "l00027" name = "l00027" > < / a > < span class = "lineno" > 27< / span > < span class = "preprocessor" > #include " absl/status/statusor.h" < / span > < / div >
< div class = "line" > < a id = "l00028" name = "l00028" > < / a > < span class = "lineno" > 28< / span > < span class = "preprocessor" > #include " absl/strings/numbers.h" < / span > < / div >
< div class = "line" > < a id = "l00029" name = "l00029" > < / a > < span class = "lineno" > 29< / span > < span class = "preprocessor" > #include " absl/strings/str_format.h" < / span > < / div >
< div class = "line" > < a id = "l00030" name = "l00030" > < / a > < span class = "lineno" > 30< / span > < span class = "preprocessor" > #include " absl/strings/str_join.h" < / span > < / div >
< div class = "line" > < a id = "l00031" name = "l00031" > < / a > < span class = "lineno" > 31< / span > < span class = "preprocessor" > #include " absl/strings/str_split.h" < / span > < / div >
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< div class = "line" > < a id = "l00032" name = "l00032" > < / a > < span class = "lineno" > 32< / span > < span class = "preprocessor" > #include " < a class = "code" href = "graph_8h.html" > ortools/graph/graph.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00033" name = "l00033" > < / a > < span class = "lineno" > 33< / span > < span class = "preprocessor" > #include " < a class = "code" href = "filelineiter_8h.html" > ortools/util/filelineiter.h< / a > " < / span > < / div >
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< div class = "line" > < a id = "l00034" name = "l00034" > < / a > < span class = "lineno" > 34< / span > < / div >
< div class = "line" > < a id = "l00035" name = "l00035" > < / a > < span class = "lineno" > 35< / span > < span class = "keyword" > namespace < / span > < a class = "code hl_namespace" href = "namespaceutil.html" > util< / a > {< / div >
< div class = "line" > < a id = "l00036" name = "l00036" > < / a > < span class = "lineno" > 36< / span > < / div >
< div class = "line" > < a id = "l00037" name = "l00037" > < / a > < span class = "lineno" > 37< / span > < span class = "comment" > // Returns a string representation of a graph.< / span > < / div >
< div class = "line" > < a id = "l00038" name = "l00038" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9" > 38< / a > < / span > < span class = "keyword" > enum< / span > < a class = "code hl_enumeration" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9" > GraphToStringFormat< / a > {< / div >
< div class = "line" > < a id = "l00039" name = "l00039" > < / a > < span class = "lineno" > 39< / span > < span class = "comment" > // One arc per line, eg. " 3-> 1" .< / span > < / div >
< div class = "line" > < a id = "l00040" name = "l00040" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9a59afa9bae775818b44690c5d14cdf8d0" > 40< / a > < / span > < a class = "code hl_enumvalue" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9a59afa9bae775818b44690c5d14cdf8d0" > PRINT_GRAPH_ARCS< / a > ,< / div >
< div class = "line" > < a id = "l00041" name = "l00041" > < / a > < span class = "lineno" > 41< / span > < / div >
< div class = "line" > < a id = "l00042" name = "l00042" > < / a > < span class = "lineno" > 42< / span > < span class = "comment" > // One space-separated adjacency list per line, eg. " 3: 5 1 3 1" .< / span > < / div >
< div class = "line" > < a id = "l00043" name = "l00043" > < / a > < span class = "lineno" > 43< / span > < span class = "comment" > // Nodes with no outgoing arc get an empty list.< / span > < / div >
< div class = "line" > < a id = "l00044" name = "l00044" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9ac932364714f74e3ca75990c8126019a1" > 44< / a > < / span > < a class = "code hl_enumvalue" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9ac932364714f74e3ca75990c8126019a1" > PRINT_GRAPH_ADJACENCY_LISTS< / a > ,< / div >
< div class = "line" > < a id = "l00045" name = "l00045" > < / a > < span class = "lineno" > 45< / span > < / div >
< div class = "line" > < a id = "l00046" name = "l00046" > < / a > < span class = "lineno" > 46< / span > < span class = "comment" > // Ditto, but the adjacency lists are sorted.< / span > < / div >
< div class = "line" > < a id = "l00047" name = "l00047" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9ada36744a3f529ceb03e7c1faa842854d" > 47< / a > < / span > < a class = "code hl_enumvalue" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9ada36744a3f529ceb03e7c1faa842854d" > PRINT_GRAPH_ADJACENCY_LISTS_SORTED< / a > ,< / div >
< div class = "line" > < a id = "l00048" name = "l00048" > < / a > < span class = "lineno" > 48< / span > };< / div >
< div class = "line" > < a id = "l00049" name = "l00049" > < / a > < span class = "lineno" > 49< / span > < span class = "keyword" > template< / span > < < span class = "keyword" > class< / span > Graph> < / div >
< div class = "line" > < a id = "l00050" name = "l00050" > < / a > < span class = "lineno" > 50< / span > std::string < a class = "code hl_function" href = "namespaceutil.html#a372b5c94ec5d30f923449516ebc2a963" > GraphToString< / a > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceutil.html#a2f76166dbe0c4055a1f256235ad00478" > Graph< / a > & graph, < a class = "code hl_enumeration" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9" > GraphToStringFormat< / a > format);< / div >
< div class = "line" > < a id = "l00051" name = "l00051" > < / a > < span class = "lineno" > 51< / span > < / div >
< div class = "line" > < a id = "l00052" name = "l00052" > < / a > < span class = "lineno" > 52< / span > < span class = "comment" > // Writes a graph to the " .g" file format described above. If " directed" is< / span > < / div >
< div class = "line" > < a id = "l00053" name = "l00053" > < / a > < span class = "lineno" > 53< / span > < span class = "comment" > // true, all arcs are written to the file. If it is false, the graph is expected< / span > < / div >
< div class = "line" > < a id = "l00054" name = "l00054" > < / a > < span class = "lineno" > 54< / span > < span class = "comment" > // to be undirected (i.e. the number of arcs a-> b is equal to the number of arcs< / span > < / div >
< div class = "line" > < a id = "l00055" name = "l00055" > < / a > < span class = "lineno" > 55< / span > < span class = "comment" > // b-> a for all nodes a,b); and only the arcs a-> b where a< =b are written. Note< / span > < / div >
< div class = "line" > < a id = "l00056" name = "l00056" > < / a > < span class = "lineno" > 56< / span > < span class = "comment" > // however that in this case, the symmetry of the graph is not fully checked< / span > < / div >
< div class = "line" > < a id = "l00057" name = "l00057" > < / a > < span class = "lineno" > 57< / span > < span class = "comment" > // (only the parity of the number of non-self arcs is).< / span > < / div >
< div class = "line" > < a id = "l00058" name = "l00058" > < / a > < span class = "lineno" > 58< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00059" name = "l00059" > < / a > < span class = "lineno" > 59< / span > < span class = "comment" > // " num_nodes_with_color" is optional. If it is not empty, then the color< / span > < / div >
< div class = "line" > < a id = "l00060" name = "l00060" > < / a > < span class = "lineno" > 60< / span > < span class = "comment" > // information will be written to the header of the .g file. See ReadGraphFile.< / span > < / div >
< div class = "line" > < a id = "l00061" name = "l00061" > < / a > < span class = "lineno" > 61< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00062" name = "l00062" > < / a > < span class = "lineno" > 62< / span > < span class = "comment" > // This method is the reverse of ReadGraphFile (with the same value for< / span > < / div >
< div class = "line" > < a id = "l00063" name = "l00063" > < / a > < span class = "lineno" > 63< / span > < span class = "comment" > // " directed" ).< / span > < / div >
< div class = "line" > < a id = "l00064" name = "l00064" > < / a > < span class = "lineno" > 64< / span > < span class = "keyword" > template< / span > < < span class = "keyword" > class< / span > Graph> < / div >
< div class = "line" > < a id = "l00065" name = "l00065" > < / a > < span class = "lineno" > 65< / span > absl::Status < a class = "code hl_function" href = "namespaceutil.html#a45fca0c4762006176ad5622ec40dea9c" > WriteGraphToFile< / a > (< span class = "keyword" > const< / span > < a class = "code hl_typedef" href = "namespaceutil.html#a2f76166dbe0c4055a1f256235ad00478" > Graph< / a > & graph, < span class = "keyword" > const< / span > std::string& filename,< / div >
< div class = "line" > < a id = "l00066" name = "l00066" > < / a > < span class = "lineno" > 66< / span > < span class = "keywordtype" > bool< / span > directed,< / div >
< div class = "line" > < a id = "l00067" name = "l00067" > < / a > < span class = "lineno" > 67< / span > < span class = "keyword" > const< / span > std::vector< int> & num_nodes_with_color);< / div >
< div class = "line" > < a id = "l00068" name = "l00068" > < / a > < span class = "lineno" > 68< / span > < / div >
< div class = "line" > < a id = "l00069" name = "l00069" > < / a > < span class = "lineno" > 69< / span > < span class = "comment" > // Implementations of the templated methods.< / span > < / div >
< div class = "line" > < a id = "l00070" name = "l00070" > < / a > < span class = "lineno" > 70< / span > < / div >
< div class = "line" > < a id = "l00071" name = "l00071" > < / a > < span class = "lineno" > 71< / span > < span class = "keyword" > template< / span > < < span class = "keyword" > class< / span > Graph> < / div >
< div class = "line" > < a id = "l00072" name = "l00072" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceutil.html#a372b5c94ec5d30f923449516ebc2a963" > 72< / a > < / span > std::string < a class = "code hl_function" href = "namespaceutil.html#a372b5c94ec5d30f923449516ebc2a963" > GraphToString< / a > (< span class = "keyword" > const< / span > < a class = "code hl_class" href = "classutil_1_1_list_graph.html" > Graph< / a > & graph, < a class = "code hl_enumeration" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9" > GraphToStringFormat< / a > format) {< / div >
< div class = "line" > < a id = "l00073" name = "l00073" > < / a > < span class = "lineno" > 73< / span > std::string out;< / div >
< div class = "line" > < a id = "l00074" name = "l00074" > < / a > < span class = "lineno" > 74< / span > std::vector< typename Graph::NodeIndex> adj;< / div >
< div class = "line" > < a id = "l00075" name = "l00075" > < / a > < span class = "lineno" > 75< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > typename< / span > < a class = "code hl_typedef" href = "classutil_1_1_base_graph.html#aec05ff3d270a5f888e1623c2a99ff2aa" > Graph::NodeIndex< / a > node : graph.< a class = "code hl_function" href = "classutil_1_1_base_graph.html#a8a40f2c75615a26ba71e94dd7d42f481" > AllNodes< / a > ()) {< / div >
< div class = "line" > < a id = "l00076" name = "l00076" > < / a > < span class = "lineno" > 76< / span > < span class = "keywordflow" > if< / span > (format == < a class = "code hl_enumvalue" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9a59afa9bae775818b44690c5d14cdf8d0" > PRINT_GRAPH_ARCS< / a > ) {< / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00077" name = "l00077" > < / a > < span class = "lineno" > 77< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > typename< / span > < a class = "code hl_typedef" href = "classutil_1_1_base_graph.html#a92531459eff09455cfa63976f5024906" > Graph::ArcIndex< / a > < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > : graph.< a class = "code hl_function" href = "classutil_1_1_list_graph.html#aeacdf885cd6777318b5aa4ef864e1066" > OutgoingArcs< / a > (node)) {< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00078" name = "l00078" > < / a > < span class = "lineno" > 78< / span > < span class = "keywordflow" > if< / span > (!out.empty()) out += < span class = "charliteral" > ' \n' < / span > ;< / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00079" name = "l00079" > < / a > < span class = "lineno" > 79< / span > absl::StrAppend(& out, node, < span class = "stringliteral" > " -> " < / span > , graph.< a class = "code hl_function" href = "classutil_1_1_list_graph.html#aceb0938bcb2e8e5f37986d4cf8e3a955" > Head< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > ));< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00080" name = "l00080" > < / a > < span class = "lineno" > 80< / span > }< / div >
< div class = "line" > < a id = "l00081" name = "l00081" > < / a > < span class = "lineno" > 81< / span > } < span class = "keywordflow" > else< / span > { < span class = "comment" > // PRINT_GRAPH_ADJACENCY_LISTS[_SORTED]< / span > < / div >
< div class = "line" > < a id = "l00082" name = "l00082" > < / a > < span class = "lineno" > 82< / span > adj.clear();< / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00083" name = "l00083" > < / a > < span class = "lineno" > 83< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > typename< / span > < a class = "code hl_typedef" href = "classutil_1_1_base_graph.html#a92531459eff09455cfa63976f5024906" > Graph::ArcIndex< / a > < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > : graph.< a class = "code hl_function" href = "classutil_1_1_list_graph.html#aeacdf885cd6777318b5aa4ef864e1066" > OutgoingArcs< / a > (node)) {< / div >
< div class = "line" > < a id = "l00084" name = "l00084" > < / a > < span class = "lineno" > 84< / span > adj.push_back(graph.< a class = "code hl_function" href = "classutil_1_1_list_graph.html#aceb0938bcb2e8e5f37986d4cf8e3a955" > Head< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > ));< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00085" name = "l00085" > < / a > < span class = "lineno" > 85< / span > }< / div >
< div class = "line" > < a id = "l00086" name = "l00086" > < / a > < span class = "lineno" > 86< / span > < span class = "keywordflow" > if< / span > (format == < a class = "code hl_enumvalue" href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9ada36744a3f529ceb03e7c1faa842854d" > PRINT_GRAPH_ADJACENCY_LISTS_SORTED< / a > ) {< / div >
< div class = "line" > < a id = "l00087" name = "l00087" > < / a > < span class = "lineno" > 87< / span > std::sort(adj.begin(), adj.end());< / div >
< div class = "line" > < a id = "l00088" name = "l00088" > < / a > < span class = "lineno" > 88< / span > }< / div >
< div class = "line" > < a id = "l00089" name = "l00089" > < / a > < span class = "lineno" > 89< / span > < span class = "keywordflow" > if< / span > (node != 0) out += < span class = "charliteral" > ' \n' < / span > ;< / div >
< div class = "line" > < a id = "l00090" name = "l00090" > < / a > < span class = "lineno" > 90< / span > absl::StrAppend(& out, node, < span class = "stringliteral" > " : " < / span > , absl::StrJoin(adj, < span class = "stringliteral" > " " < / span > ));< / div >
< div class = "line" > < a id = "l00091" name = "l00091" > < / a > < span class = "lineno" > 91< / span > }< / div >
< div class = "line" > < a id = "l00092" name = "l00092" > < / a > < span class = "lineno" > 92< / span > }< / div >
< div class = "line" > < a id = "l00093" name = "l00093" > < / a > < span class = "lineno" > 93< / span > < span class = "keywordflow" > return< / span > out;< / div >
< div class = "line" > < a id = "l00094" name = "l00094" > < / a > < span class = "lineno" > 94< / span > }< / div >
< div class = "line" > < a id = "l00095" name = "l00095" > < / a > < span class = "lineno" > 95< / span > < / div >
< div class = "line" > < a id = "l00096" name = "l00096" > < / a > < span class = "lineno" > 96< / span > < span class = "keyword" > template< / span > < < span class = "keyword" > class< / span > Graph> < / div >
< div class = "line" > < a id = "l00097" name = "l00097" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceutil.html#a45fca0c4762006176ad5622ec40dea9c" > 97< / a > < / span > absl::Status < a class = "code hl_function" href = "namespaceutil.html#a45fca0c4762006176ad5622ec40dea9c" > WriteGraphToFile< / a > (< span class = "keyword" > const< / span > < a class = "code hl_class" href = "classutil_1_1_list_graph.html" > Graph< / a > & graph, < span class = "keyword" > const< / span > std::string& filename,< / div >
< div class = "line" > < a id = "l00098" name = "l00098" > < / a > < span class = "lineno" > 98< / span > < span class = "keywordtype" > bool< / span > directed,< / div >
< div class = "line" > < a id = "l00099" name = "l00099" > < / a > < span class = "lineno" > 99< / span > < span class = "keyword" > const< / span > std::vector< int> & num_nodes_with_color) {< / div >
< div class = "line" > < a id = "l00100" name = "l00100" > < / a > < span class = "lineno" > 100< / span > FILE* f = fopen(filename.c_str(), < span class = "stringliteral" > " w" < / span > );< / div >
< div class = "line" > < a id = "l00101" name = "l00101" > < / a > < span class = "lineno" > 101< / span > < span class = "keywordflow" > if< / span > (f == < span class = "keyword" > nullptr< / span > ) {< / div >
< div class = "line" > < a id = "l00102" name = "l00102" > < / a > < span class = "lineno" > 102< / span > < span class = "keywordflow" > return< / span > absl::Status(absl::StatusCode::kInvalidArgument,< / div >
< div class = "line" > < a id = "l00103" name = "l00103" > < / a > < span class = "lineno" > 103< / span > < span class = "stringliteral" > " Could not open file: ' " < / span > + filename + < span class = "stringliteral" > " ' " < / span > );< / div >
< div class = "line" > < a id = "l00104" name = "l00104" > < / a > < span class = "lineno" > 104< / span > }< / div >
< div class = "line" > < a id = "l00105" name = "l00105" > < / a > < span class = "lineno" > 105< / span > < span class = "comment" > // In undirected mode, we must count the self-arcs separately. All other arcs< / span > < / div >
< div class = "line" > < a id = "l00106" name = "l00106" > < / a > < span class = "lineno" > 106< / span > < span class = "comment" > // should be duplicated.< / span > < / div >
< div class = "line" > < a id = "l00107" name = "l00107" > < / a > < span class = "lineno" > 107< / span > < span class = "keywordtype" > int< / span > num_self_arcs = 0;< / div >
< div class = "line" > < a id = "l00108" name = "l00108" > < / a > < span class = "lineno" > 108< / span > < span class = "keywordflow" > if< / span > (!directed) {< / div >
< div class = "line" > < a id = "l00109" name = "l00109" > < / a > < span class = "lineno" > 109< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > typename< / span > < a class = "code hl_typedef" href = "classutil_1_1_base_graph.html#aec05ff3d270a5f888e1623c2a99ff2aa" > Graph::NodeIndex< / a > node : graph.< a class = "code hl_function" href = "classutil_1_1_base_graph.html#a8a40f2c75615a26ba71e94dd7d42f481" > AllNodes< / a > ()) {< / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00110" name = "l00110" > < / a > < span class = "lineno" > 110< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > typename< / span > < a class = "code hl_typedef" href = "classutil_1_1_base_graph.html#a92531459eff09455cfa63976f5024906" > Graph::ArcIndex< / a > < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > : graph.< a class = "code hl_function" href = "classutil_1_1_list_graph.html#aeacdf885cd6777318b5aa4ef864e1066" > OutgoingArcs< / a > (node)) {< / div >
< div class = "line" > < a id = "l00111" name = "l00111" > < / a > < span class = "lineno" > 111< / span > < span class = "keywordflow" > if< / span > (graph.< a class = "code hl_function" href = "classutil_1_1_list_graph.html#aceb0938bcb2e8e5f37986d4cf8e3a955" > Head< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > ) == node) ++num_self_arcs;< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00112" name = "l00112" > < / a > < span class = "lineno" > 112< / span > }< / div >
< div class = "line" > < a id = "l00113" name = "l00113" > < / a > < span class = "lineno" > 113< / span > }< / div >
< div class = "line" > < a id = "l00114" name = "l00114" > < / a > < span class = "lineno" > 114< / span > < span class = "keywordflow" > if< / span > ((graph.< a class = "code hl_function" href = "classutil_1_1_base_graph.html#a4d3fc55a2fe209a908470199437cec9a" > num_arcs< / a > () - num_self_arcs) % 2 != 0) {< / div >
< div class = "line" > < a id = "l00115" name = "l00115" > < / a > < span class = "lineno" > 115< / span > fclose(f);< / div >
< div class = "line" > < a id = "l00116" name = "l00116" > < / a > < span class = "lineno" > 116< / span > < span class = "keywordflow" > return< / span > absl::Status(absl::StatusCode::kInvalidArgument,< / div >
< div class = "line" > < a id = "l00117" name = "l00117" > < / a > < span class = "lineno" > 117< / span > < span class = "stringliteral" > " WriteGraphToFile() called with directed=false" < / span > < / div >
< div class = "line" > < a id = "l00118" name = "l00118" > < / a > < span class = "lineno" > 118< / span > < span class = "stringliteral" > " and with a graph with an odd number of (non-self)" < / span > < / div >
< div class = "line" > < a id = "l00119" name = "l00119" > < / a > < span class = "lineno" > 119< / span > < span class = "stringliteral" > " arcs!" < / span > );< / div >
< div class = "line" > < a id = "l00120" name = "l00120" > < / a > < span class = "lineno" > 120< / span > }< / div >
< div class = "line" > < a id = "l00121" name = "l00121" > < / a > < span class = "lineno" > 121< / span > }< / div >
< div class = "line" > < a id = "l00122" name = "l00122" > < / a > < span class = "lineno" > 122< / span > absl::FPrintF(< / div >
< div class = "line" > < a id = "l00123" name = "l00123" > < / a > < span class = "lineno" > 123< / span > f, < span class = "stringliteral" > " %d %d" < / span > , < span class = "keyword" > static_cast< < / span > int64_t< span class = "keyword" > > < / span > (graph.< a class = "code hl_function" href = "classutil_1_1_base_graph.html#a6a2df5042167b234f6dc3aed4acfa6c9" > num_nodes< / a > ()),< / div >
< div class = "line" > < a id = "l00124" name = "l00124" > < / a > < span class = "lineno" > 124< / span > < span class = "keyword" > static_cast< < / span > int64_t< span class = "keyword" > > < / span > (directed ? graph.< a class = "code hl_function" href = "classutil_1_1_base_graph.html#a4d3fc55a2fe209a908470199437cec9a" > num_arcs< / a > ()< / div >
< div class = "line" > < a id = "l00125" name = "l00125" > < / a > < span class = "lineno" > 125< / span > : (graph.< a class = "code hl_function" href = "classutil_1_1_base_graph.html#a4d3fc55a2fe209a908470199437cec9a" > num_arcs< / a > () + num_self_arcs) / 2));< / div >
< div class = "line" > < a id = "l00126" name = "l00126" > < / a > < span class = "lineno" > 126< / span > < span class = "keywordflow" > if< / span > (!num_nodes_with_color.empty()) {< / div >
< div class = "line" > < a id = "l00127" name = "l00127" > < / a > < span class = "lineno" > 127< / span > < span class = "keywordflow" > if< / span > (std::accumulate(num_nodes_with_color.begin(),< / div >
< div class = "line" > < a id = "l00128" name = "l00128" > < / a > < span class = "lineno" > 128< / span > num_nodes_with_color.end(), 0) != graph.< a class = "code hl_function" href = "classutil_1_1_base_graph.html#a6a2df5042167b234f6dc3aed4acfa6c9" > num_nodes< / a > () ||< / div >
< div class = "line" > < a id = "l00129" name = "l00129" > < / a > < span class = "lineno" > 129< / span > *std::min_element(num_nodes_with_color.begin(),< / div >
< div class = "line" > < a id = "l00130" name = "l00130" > < / a > < span class = "lineno" > 130< / span > num_nodes_with_color.end()) < = 0) {< / div >
< div class = "line" > < a id = "l00131" name = "l00131" > < / a > < span class = "lineno" > 131< / span > < span class = "keywordflow" > return< / span > absl::Status(absl::StatusCode::kInvalidArgument,< / div >
< div class = "line" > < a id = "l00132" name = "l00132" > < / a > < span class = "lineno" > 132< / span > < span class = "stringliteral" > " WriteGraphToFile() called with invalid coloring." < / span > );< / div >
< div class = "line" > < a id = "l00133" name = "l00133" > < / a > < span class = "lineno" > 133< / span > }< / div >
< div class = "line" > < a id = "l00134" name = "l00134" > < / a > < span class = "lineno" > 134< / span > absl::FPrintF(f, < span class = "stringliteral" > " %d" < / span > , num_nodes_with_color.size());< / div >
< div class = "line" > < a id = "l00135" name = "l00135" > < / a > < span class = "lineno" > 135< / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < num_nodes_with_color.size() - 1; ++i) {< / div >
< div class = "line" > < a id = "l00136" name = "l00136" > < / a > < span class = "lineno" > 136< / span > absl::FPrintF(f, < span class = "stringliteral" > " %d" < / span > , < span class = "keyword" > static_cast< < / span > int64_t< span class = "keyword" > > < / span > (num_nodes_with_color[i]));< / div >
< div class = "line" > < a id = "l00137" name = "l00137" > < / a > < span class = "lineno" > 137< / span > }< / div >
< div class = "line" > < a id = "l00138" name = "l00138" > < / a > < span class = "lineno" > 138< / span > }< / div >
< div class = "line" > < a id = "l00139" name = "l00139" > < / a > < span class = "lineno" > 139< / span > absl::FPrintF(f, < span class = "stringliteral" > " \n" < / span > );< / div >
< div class = "line" > < a id = "l00140" name = "l00140" > < / a > < span class = "lineno" > 140< / span > < / div >
< div class = "line" > < a id = "l00141" name = "l00141" > < / a > < span class = "lineno" > 141< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > typename< / span > < a class = "code hl_typedef" href = "classutil_1_1_base_graph.html#aec05ff3d270a5f888e1623c2a99ff2aa" > Graph::NodeIndex< / a > node : graph.< a class = "code hl_function" href = "classutil_1_1_base_graph.html#a8a40f2c75615a26ba71e94dd7d42f481" > AllNodes< / a > ()) {< / div >
2022-03-04 00:11:33 +01:00
< div class = "line" > < a id = "l00142" name = "l00142" > < / a > < span class = "lineno" > 142< / span > < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > typename< / span > < a class = "code hl_typedef" href = "classutil_1_1_base_graph.html#a92531459eff09455cfa63976f5024906" > Graph::ArcIndex< / a > < a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > : graph.< a class = "code hl_function" href = "classutil_1_1_list_graph.html#aeacdf885cd6777318b5aa4ef864e1066" > OutgoingArcs< / a > (node)) {< / div >
< div class = "line" > < a id = "l00143" name = "l00143" > < / a > < span class = "lineno" > 143< / span > < span class = "keyword" > const< / span > < span class = "keyword" > typename< / span > < a class = "code hl_typedef" href = "classutil_1_1_base_graph.html#aec05ff3d270a5f888e1623c2a99ff2aa" > Graph::NodeIndex< / a > < a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > = graph.< a class = "code hl_function" href = "classutil_1_1_list_graph.html#aceb0938bcb2e8e5f37986d4cf8e3a955" > Head< / a > (< a class = "code hl_variable" href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > );< / div >
2022-01-17 21:42:14 +01:00
< div class = "line" > < a id = "l00144" name = "l00144" > < / a > < span class = "lineno" > 144< / span > < span class = "keywordflow" > if< / span > (directed || < a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > > = node) {< / div >
< div class = "line" > < a id = "l00145" name = "l00145" > < / a > < span class = "lineno" > 145< / span > absl::FPrintF(f, < span class = "stringliteral" > " %d %d\n" < / span > , < span class = "keyword" > static_cast< < / span > int64_t< span class = "keyword" > > < / span > (node),< / div >
< div class = "line" > < a id = "l00146" name = "l00146" > < / a > < span class = "lineno" > 146< / span > < span class = "keyword" > static_cast< < / span > uint64_t< span class = "keyword" > > < / span > (< a class = "code hl_variable" href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > ));< / div >
< div class = "line" > < a id = "l00147" name = "l00147" > < / a > < span class = "lineno" > 147< / span > }< / div >
< div class = "line" > < a id = "l00148" name = "l00148" > < / a > < span class = "lineno" > 148< / span > }< / div >
< div class = "line" > < a id = "l00149" name = "l00149" > < / a > < span class = "lineno" > 149< / span > }< / div >
< div class = "line" > < a id = "l00150" name = "l00150" > < / a > < span class = "lineno" > 150< / span > < span class = "keywordflow" > if< / span > (fclose(f) != 0) {< / div >
< div class = "line" > < a id = "l00151" name = "l00151" > < / a > < span class = "lineno" > 151< / span > < span class = "keywordflow" > return< / span > absl::Status(absl::StatusCode::kInternal,< / div >
< div class = "line" > < a id = "l00152" name = "l00152" > < / a > < span class = "lineno" > 152< / span > < span class = "stringliteral" > " Could not close file ' " < / span > + filename + < span class = "stringliteral" > " ' " < / span > );< / div >
< div class = "line" > < a id = "l00153" name = "l00153" > < / a > < span class = "lineno" > 153< / span > }< / div >
< div class = "line" > < a id = "l00154" name = "l00154" > < / a > < span class = "lineno" > 154< / span > return ::absl::OkStatus();< / div >
< div class = "line" > < a id = "l00155" name = "l00155" > < / a > < span class = "lineno" > 155< / span > }< / div >
< div class = "line" > < a id = "l00156" name = "l00156" > < / a > < span class = "lineno" > 156< / span > < / div >
< div class = "line" > < a id = "l00157" name = "l00157" > < / a > < span class = "lineno" > 157< / span > } < span class = "comment" > // namespace util< / span > < / div >
< div class = "line" > < a id = "l00158" name = "l00158" > < / a > < span class = "lineno" > 158< / span > < / div >
< div class = "line" > < a id = "l00159" name = "l00159" > < / a > < span class = "lineno" > 159< / span > < span class = "preprocessor" > #endif < / span > < span class = "comment" > // UTIL_GRAPH_IO_H_< / span > < / div >
< div class = "ttc" id = "aclassutil_1_1_base_graph_html_a4d3fc55a2fe209a908470199437cec9a" > < div class = "ttname" > < a href = "classutil_1_1_base_graph.html#a4d3fc55a2fe209a908470199437cec9a" > util::BaseGraph::num_arcs< / a > < / div > < div class = "ttdeci" > ArcIndexType num_arcs() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "graph_8h_source.html#l00207" > graph.h:207< / a > < / div > < / div >
< div class = "ttc" id = "aclassutil_1_1_base_graph_html_a6a2df5042167b234f6dc3aed4acfa6c9" > < div class = "ttname" > < a href = "classutil_1_1_base_graph.html#a6a2df5042167b234f6dc3aed4acfa6c9" > util::BaseGraph::num_nodes< / a > < / div > < div class = "ttdeci" > NodeIndexType num_nodes() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "graph_8h_source.html#l00204" > graph.h:204< / a > < / div > < / div >
< div class = "ttc" id = "aclassutil_1_1_base_graph_html_a8a40f2c75615a26ba71e94dd7d42f481" > < div class = "ttname" > < a href = "classutil_1_1_base_graph.html#a8a40f2c75615a26ba71e94dd7d42f481" > util::BaseGraph::AllNodes< / a > < / div > < div class = "ttdeci" > IntegerRange< NodeIndex > AllNodes() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "graph_8h_source.html#l00937" > graph.h:937< / a > < / div > < / div >
< div class = "ttc" id = "aclassutil_1_1_base_graph_html_a92531459eff09455cfa63976f5024906" > < div class = "ttname" > < a href = "classutil_1_1_base_graph.html#a92531459eff09455cfa63976f5024906" > util::BaseGraph< int32_t, int32_t, false > ::ArcIndex< / a > < / div > < div class = "ttdeci" > int32_t ArcIndex< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "graph_8h_source.html#l00193" > graph.h:193< / a > < / div > < / div >
< div class = "ttc" id = "aclassutil_1_1_base_graph_html_aec05ff3d270a5f888e1623c2a99ff2aa" > < div class = "ttname" > < a href = "classutil_1_1_base_graph.html#aec05ff3d270a5f888e1623c2a99ff2aa" > util::BaseGraph< int32_t, int32_t, false > ::NodeIndex< / a > < / div > < div class = "ttdeci" > int32_t NodeIndex< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "graph_8h_source.html#l00192" > graph.h:192< / a > < / div > < / div >
< div class = "ttc" id = "aclassutil_1_1_list_graph_html" > < div class = "ttname" > < a href = "classutil_1_1_list_graph.html" > util::ListGraph< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "graph_8h_source.html#l00300" > graph.h:300< / a > < / div > < / div >
< div class = "ttc" id = "aclassutil_1_1_list_graph_html_aceb0938bcb2e8e5f37986d4cf8e3a955" > < div class = "ttname" > < a href = "classutil_1_1_list_graph.html#aceb0938bcb2e8e5f37986d4cf8e3a955" > util::ListGraph::Head< / a > < / div > < div class = "ttdeci" > NodeIndexType Head(ArcIndexType arc) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "graph_8h_source.html#l01119" > graph.h:1119< / a > < / div > < / div >
< div class = "ttc" id = "aclassutil_1_1_list_graph_html_aeacdf885cd6777318b5aa4ef864e1066" > < div class = "ttname" > < a href = "classutil_1_1_list_graph.html#aeacdf885cd6777318b5aa4ef864e1066" > util::ListGraph::OutgoingArcs< / a > < / div > < div class = "ttdeci" > BeginEndWrapper< OutgoingArcIterator > OutgoingArcs(NodeIndexType node) const< / div > < / div >
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< div class = "ttc" id = "afilelineiter_8h_html" > < div class = "ttname" > < a href = "filelineiter_8h.html" > filelineiter.h< / a > < / div > < / div >
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< div class = "ttc" id = "agraph_8h_html" > < div class = "ttname" > < a href = "graph_8h.html" > graph.h< / a > < / div > < / div >
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< div class = "ttc" id = "alocal__search_8cc_html_a30b5726116ac85ea64777e5d6e333894" > < div class = "ttname" > < a href = "local__search_8cc.html#a30b5726116ac85ea64777e5d6e333894" > arc< / a > < / div > < div class = "ttdeci" > int arc< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "local__search_8cc_source.html#l02751" > local_search.cc:2751< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceutil_html" > < div class = "ttname" > < a href = "namespaceutil.html" > util< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "status__builder_8h_source.html#l00024" > status_builder.h:24< / a > < / div > < / div >
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< div class = "ttc" id = "anamespaceutil_html_a2d1e9c029dfaa2e8dfd58862836440b9" > < div class = "ttname" > < a href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9" > util::GraphToStringFormat< / a > < / div > < div class = "ttdeci" > GraphToStringFormat< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "io_8h_source.html#l00038" > io.h:38< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceutil_html_a2d1e9c029dfaa2e8dfd58862836440b9a59afa9bae775818b44690c5d14cdf8d0" > < div class = "ttname" > < a href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9a59afa9bae775818b44690c5d14cdf8d0" > util::PRINT_GRAPH_ARCS< / a > < / div > < div class = "ttdeci" > @ PRINT_GRAPH_ARCS< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "io_8h_source.html#l00040" > io.h:40< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceutil_html_a2d1e9c029dfaa2e8dfd58862836440b9ac932364714f74e3ca75990c8126019a1" > < div class = "ttname" > < a href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9ac932364714f74e3ca75990c8126019a1" > util::PRINT_GRAPH_ADJACENCY_LISTS< / a > < / div > < div class = "ttdeci" > @ PRINT_GRAPH_ADJACENCY_LISTS< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "io_8h_source.html#l00044" > io.h:44< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceutil_html_a2d1e9c029dfaa2e8dfd58862836440b9ada36744a3f529ceb03e7c1faa842854d" > < div class = "ttname" > < a href = "namespaceutil.html#a2d1e9c029dfaa2e8dfd58862836440b9ada36744a3f529ceb03e7c1faa842854d" > util::PRINT_GRAPH_ADJACENCY_LISTS_SORTED< / a > < / div > < div class = "ttdeci" > @ PRINT_GRAPH_ADJACENCY_LISTS_SORTED< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "io_8h_source.html#l00047" > io.h:47< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceutil_html_a2f76166dbe0c4055a1f256235ad00478" > < div class = "ttname" > < a href = "namespaceutil.html#a2f76166dbe0c4055a1f256235ad00478" > util::Graph< / a > < / div > < div class = "ttdeci" > ListGraph Graph< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "graph_8h_source.html#l02362" > graph.h:2362< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceutil_html_a372b5c94ec5d30f923449516ebc2a963" > < div class = "ttname" > < a href = "namespaceutil.html#a372b5c94ec5d30f923449516ebc2a963" > util::GraphToString< / a > < / div > < div class = "ttdeci" > std::string GraphToString(const Graph & graph, GraphToStringFormat format)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "io_8h_source.html#l00072" > io.h:72< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceutil_html_a45fca0c4762006176ad5622ec40dea9c" > < div class = "ttname" > < a href = "namespaceutil.html#a45fca0c4762006176ad5622ec40dea9c" > util::WriteGraphToFile< / a > < / div > < div class = "ttdeci" > absl::Status WriteGraphToFile(const Graph & graph, const std::string & filename, bool directed, const std::vector< int > & num_nodes_with_color)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "io_8h_source.html#l00097" > io.h:97< / a > < / div > < / div >
< div class = "ttc" id = "arouting__flow_8cc_html_afca32f65388659a4b0956496169488b4" > < div class = "ttname" > < a href = "routing__flow_8cc.html#afca32f65388659a4b0956496169488b4" > head< / a > < / div > < div class = "ttdeci" > int64_t head< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__flow_8cc_source.html#l00150" > routing_flow.cc:150< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< / div > <!-- fragment --> < / div > <!-- contents -->
< / div > <!-- doc - content -->
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2022-01-17 21:42:14 +01:00
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