adjacency_list doesn't work with hash_setS

[Rob Patro <rob.patro@…>]

When compiling under Clang (3.3 final), the following code results in a compile error due to template lookup failure. It compiles cleanly under G++ 4.8. Replacing hash_setS with setS allows the code to compile.

#include <boost/graph/adjacency_list.hpp>
#include <iostream>

int main(int argc, char* argv[]) {

    typedef boost::adjacency_list<boost::hash_setS, boost::vecS, boost::undirectedS > undirectedGraphT;
    undirectedGraphT G;
    boost::add_edge(1, 2, G);
    typedef boost::graph_traits <undirectedGraphT>::edge_descriptor Edge;
    Edge e;
    bool hasEdge{false};

    std::tie(e, hasEdge) = boost::edge(1, 2, G);

    std::cout << (hasEdge ? "did " : "did not ") << "find edge\n";
}

[Rob Patro <rob.patro@…>]

compiler output

[Jeremiah Willcock]

(In [86137]) Made boost::unordered inclusion unconditional; removed support for non-partial-specialization compilers; enabled C++11 unordered containers when they are present; refs #8962