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allow edge_descriptors to be created from pair<edge_descriptor, bool>

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This commit is contained in:
Alex Coyte
2016-08-30 16:08:49 +10:00
committed by Matthew Barr
parent e1e9010cac
commit 530d84c6f3
23 changed files with 86 additions and 130 deletions
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9
src/util/ue2_graph.h
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@@ -328,6 +328,15 @@ public:
edge_descriptor() : p(nullptr), serial(0) { }
explicit edge_descriptor(edge_node *pp) : p(pp), serial(pp->serial) { }
/* Convenice ctor to allow us to directly get an edge_descriptor from
* edge() and add_edge(). As we have null_edges and we always allow
* parallel edges, the bool component of the return from these functions
* is not required. */
edge_descriptor(const std::pair<edge_descriptor, bool> &tup)
: p(tup.first.p), serial(tup.first.serial) {
assert(tup.second == (bool)tup.first);
}
operator bool() const { return p; }
bool operator<(const edge_descriptor b) const {
if (p && b.p) {