PGROUTING  3.2
maximum_cardinality_matching_driver.h File Reference
#include <stddef.h>
#include "c_types/pgr_basic_edge_t.h"
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Functions

void do_pgr_maximum_cardinality_matching (pgr_basic_edge_t *data_edges, size_t total_edges, bool directed, pgr_basic_edge_t **return_tuples, size_t *return_count, char **log_msg, char **notice_msg, char **err_msg)
 

Function Documentation

◆ do_pgr_maximum_cardinality_matching()

void do_pgr_maximum_cardinality_matching ( pgr_basic_edge_t data_edges,
size_t  total_edges,
bool  directed,
pgr_basic_edge_t **  return_tuples,
size_t *  return_count,
char **  log_msg,
char **  notice_msg,
char **  err_msg 
)

Definition at line 42 of file maximum_cardinality_matching_driver.cpp.

52  {
53  std::ostringstream log;
54  std::ostringstream notice;
55  std::ostringstream err;
56 
57  try {
58  std::vector<pgr_basic_edge_t> matched_vertices;
59 
60  if (directed) {
62  matched_vertices = G.get_matched_vertices();
63  } else {
65  matched_vertices = G.get_matched_vertices();
66  }
67 
68  (*return_tuples) = pgr_alloc(matched_vertices.size(), (*return_tuples));
69  for (size_t i = 0; i < matched_vertices.size(); ++i) {
70  (*return_tuples)[i] = matched_vertices[i];
71  }
72  *return_count = matched_vertices.size();
73 
74  *log_msg = log.str().empty()?
75  *log_msg :
76  pgr_msg(log.str().c_str());
77  *notice_msg = notice.str().empty()?
78  *notice_msg :
79  pgr_msg(notice.str().c_str());
80  } catch (AssertFailedException &except) {
81  (*return_tuples) = pgr_free(*return_tuples);
82  (*return_count) = 0;
83  err << except.what();
84  *err_msg = pgr_msg(err.str().c_str());
85  *log_msg = pgr_msg(log.str().c_str());
86  } catch (std::exception &except) {
87  (*return_tuples) = pgr_free(*return_tuples);
88  (*return_count) = 0;
89  err << except.what();
90  *err_msg = pgr_msg(err.str().c_str());
91  *log_msg = pgr_msg(log.str().c_str());
92  } catch(...) {
93  (*return_tuples) = pgr_free(*return_tuples);
94  (*return_count) = 0;
95  err << "Caught unknown exception!";
96  *err_msg = pgr_msg(err.str().c_str());
97  *log_msg = pgr_msg(log.str().c_str());
98  }
99 }

References pgr_alloc(), pgr_free(), pgr_msg(), and AssertFailedException::what().

Referenced by process().

pgr_alloc
T * pgr_alloc(std::size_t size, T *ptr)
allocates memory
Definition: pgr_alloc.hpp:66
pgr_msg
char * pgr_msg(const std::string &msg)
Definition: pgr_alloc.cpp:30
AssertFailedException::what
virtual const char * what() const
Definition: pgr_assert.cpp:67
pgrouting::flow::PgrCardinalityGraph
Definition: pgr_maximumcardinalitymatching.hpp:55
pgrouting::alphashape::G
graph::Pgr_base_graph< BG, XY_vertex, Basic_edge > G
Definition: pgr_alphaShape.h:56
pgr_free
T * pgr_free(T *ptr)
Definition: pgr_alloc.hpp:77
AssertFailedException
Extends std::exception and is the exception that we throw if an assert fails.
Definition: pgr_assert.h:139