std::list<std::pair<typename WeightMap::value_type,
std::list<typename Graph::edge_descriptor>>>
yen_ksp(const Graph& g, Vertex<Graph> s, Vertex<Graph> t,
WeightMap wm, IndexMap im, boost::optional<unsigned> K, boost::optional<unsigned> length)
{
using kr_type = Result<typename WeightMap::value_type, Graph>;
// The shortest paths - these we return.
std::list<kr_type> A;
// An empty result if the source and destination are the same.
if (s != t)
{
// The tentative paths - these are candidate paths. It's a
// set, because we want to make sure that a given result can
// show up in the set of tentative results only once. The
// problem is that the algorithm can find the same tentative
// path many times.
std::set<kr_type> B;
// In each iteration we produce the k-th shortest path.
for (int k = 1; !K || k <= K.value(); ++k) {
if (!yen_ksp(g, s, t, wm, im, A, B)) {
// We break the loop if no path was found.
break;
}
if (length && A.back().second.size() > length.value()) {
// We break the loop if the maximum path length was exceeded
A.pop_back();
break;
}
}
}
return A;
}
#include <boost/filesystem.hpp>
#include <gdbplz/connection.hpp>
#include "../Catch/include/catch.hpp"
TEST_CASE("guessing gdb path", "[connection]")
{
boost::optional<boost::filesystem::path> path = gdbplz::guess_gdb_path();
REQUIRE((!path || boost::filesystem::exists(path.value())) == true);
}
TEST_CASE("launching with non-existing gdb", "[connection]")
{
REQUIRE_THROWS_AS([](){
gdbplz::connection conn("/sfsfsdfwdsfwerfwef/xcvxvfsdfsdfwerwefrsgfdfgdfgergtergdfg");
}(), gdbplz::gdb_not_found);
}