Added boost header

test/external/boost/graph/parallel/algorithm.hpp

@@ -0,0 +1,84 @@
+// Copyright 2004 The Trustees of Indiana University.
+
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  Authors: Douglas Gregor
+//           Andrew Lumsdaine
+#ifndef BOOST_PARALLEL_ALGORITHM_HPP
+#define BOOST_PARALLEL_ALGORITHM_HPP
+
+#ifndef BOOST_GRAPH_USE_MPI
+#error "Parallel BGL files should not be included unless <boost/graph/use_mpi.hpp> has been included"
+#endif
+
+#include <boost/optional.hpp>
+#include <boost/config.hpp> // for BOOST_STATIC_CONSTANT
+#include <vector>
+#include <functional>
+
+namespace boost { namespace parallel {
+  template<typename BinaryOp>
+  struct is_commutative
+  {
+    BOOST_STATIC_CONSTANT(bool, value = false);
+  };
+
+  template<typename T>
+  struct minimum : std::binary_function<T, T, T>
+  {
+    const T& operator()(const T& x, const T& y) const { return x < y? x : y; }
+  };
+
+  template<typename T>
+  struct maximum : std::binary_function<T, T, T>
+  {
+    const T& operator()(const T& x, const T& y) const { return x < y? y : x; }
+  };
+
+  template<typename T>
+  struct sum : std::binary_function<T, T, T>
+  {
+    const T operator()(const T& x, const T& y) const { return x + y; }
+  };
+
+  template<typename ProcessGroup, typename InputIterator,
+           typename OutputIterator, typename BinaryOperation>
+  OutputIterator
+  reduce(ProcessGroup pg, typename ProcessGroup::process_id_type root,
+         InputIterator first, InputIterator last, OutputIterator out,
+         BinaryOperation bin_op);
+
+  template<typename ProcessGroup, typename T, typename BinaryOperation>
+  inline T
+  all_reduce(ProcessGroup pg, const T& value, BinaryOperation bin_op)
+  {
+    T result;
+    all_reduce(pg,
+               const_cast<T*>(&value), const_cast<T*>(&value+1),
+               &result, bin_op);
+    return result;
+  }
+
+  template<typename ProcessGroup, typename T, typename BinaryOperation>
+  inline T
+  scan(ProcessGroup pg, const T& value, BinaryOperation bin_op)
+  {
+    T result;
+    scan(pg,
+         const_cast<T*>(&value), const_cast<T*>(&value+1),
+         &result, bin_op);
+    return result;
+  }
+
+
+  template<typename ProcessGroup, typename InputIterator, typename T>
+  void
+  all_gather(ProcessGroup pg, InputIterator first, InputIterator last,
+             std::vector<T>& out);
+} } // end namespace boost::parallel
+
+#include <boost/graph/parallel/detail/inplace_all_to_all.hpp>
+
+#endif // BOOST_PARALLEL_ALGORITHM_HPP