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.

                    {
    std::ostringstream log;
    std::ostringstream notice;
    std::ostringstream err;
 
    try {
        std::vector<pgr_basic_edge_t> matched_vertices;
 
        if (directed) {
            pgrouting::flow::PgrCardinalityGraph<pgrouting::BasicDirectedGraph> G(data_edges, total_tuples);
            matched_vertices = G.get_matched_vertices();
        } else {
            pgrouting::flow::PgrCardinalityGraph< pgrouting::BasicUndirectedGraph> G(data_edges, total_tuples);
            matched_vertices = G.get_matched_vertices();
        }
 
        (*return_tuples) = pgr_alloc(matched_vertices.size(), (*return_tuples));
        for (size_t i = 0; i < matched_vertices.size(); ++i) {
            (*return_tuples)[i] = matched_vertices[i];
        }
        *return_count = matched_vertices.size();
 
        *log_msg = log.str().empty()?
            *log_msg :
            pgr_msg(log.str().c_str());
        *notice_msg = notice.str().empty()?
            *notice_msg :
            pgr_msg(notice.str().c_str());
    } catch (AssertFailedException &except) {
        (*return_tuples) = pgr_free(*return_tuples);
        (*return_count) = 0;
        err << except.what();
        *err_msg = pgr_msg(err.str().c_str());
        *log_msg = pgr_msg(log.str().c_str());
    } catch (std::exception &except) {
        (*return_tuples) = pgr_free(*return_tuples);
        (*return_count) = 0;
        err << except.what();
        *err_msg = pgr_msg(err.str().c_str());
        *log_msg = pgr_msg(log.str().c_str());
    } catch(...) {
        (*return_tuples) = pgr_free(*return_tuples);
        (*return_count) = 0;
        err << "Caught unknown exception!";
        *err_msg = pgr_msg(err.str().c_str());
        *log_msg = pgr_msg(log.str().c_str());
    }
}

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

Referenced by process().