Added boost header

2012-01-08 01:26:07 +00:00
parent 9c3faaca40
commit c7d752cdf8
8946 changed files with 1732316 additions and 0 deletions
--- a/test/external/boost/mpi/status.hpp
+++ b/test/external/boost/mpi/status.hpp
@@ -0,0 +1,107 @@
+// Copyright (C) 2006 Douglas Gregor <doug.gregor -at- gmail.com>.
+
+// 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)
+
+/** @file status.hpp
+ *
+ *  This header defines the class @c status, which reports on the
+ *  results of point-to-point communication.
+ */
+#ifndef BOOST_MPI_STATUS_HPP
+#define BOOST_MPI_STATUS_HPP
+
+#include <boost/mpi/config.hpp>
+#include <boost/optional.hpp>
+
+namespace boost { namespace mpi {
+
+class request;
+class communicator;
+
+/** @brief Contains information about a message that has been or can
+ *  be received.
+ *
+ *  This structure contains status information about messages that
+ *  have been received (with @c communicator::recv) or can be received
+ *  (returned from @c communicator::probe or @c
+ *  communicator::iprobe). It permits access to the source of the
+ *  message, message tag, error code (rarely used), or the number of
+ *  elements that have been transmitted.
+ */
+class BOOST_MPI_DECL status
+{
+ public:
+  status() : m_count(-1) { }
+  
+  status(MPI_Status const& s) : m_status(s), m_count(-1) {}
+
+  /**
+   * Retrieve the source of the message.
+   */
+  int source() const { return m_status.MPI_SOURCE; }
+
+  /**
+   * Retrieve the message tag.
+   */
+  int tag() const { return m_status.MPI_TAG; }
+
+  /**
+   * Retrieve the error code.
+   */
+  int error() const { return m_status.MPI_ERROR; }
+
+  /**
+   * Determine whether the communication associated with this object
+   * has been successfully cancelled.
+  */
+  bool cancelled() const;
+
+  /**
+   * Determines the number of elements of type @c T contained in the
+   * message. The type @c T must have an associated data type, i.e.,
+   * @c is_mpi_datatype<T> must derive @c mpl::true_. In cases where
+   * the type @c T does not match the transmitted type, this routine
+   * will return an empty @c optional<int>.
+   *
+   * @returns the number of @c T elements in the message, if it can be
+   * determined.
+   */
+  template<typename T> optional<int> count() const;
+
+  /**
+   * References the underlying @c MPI_Status
+   */
+  operator       MPI_Status&()       { return m_status; }
+
+  /**
+   * References the underlying @c MPI_Status
+   */
+  operator const MPI_Status&() const { return m_status; }
+
+ private:
+  /**
+   * INTERNAL ONLY
+   */
+  template<typename T> optional<int> count_impl(mpl::true_) const;
+
+  /**
+   * INTERNAL ONLY
+   */
+  template<typename T> optional<int> count_impl(mpl::false_) const;
+
+ public: // friend templates are not portable
+
+  /// INTERNAL ONLY
+  mutable MPI_Status m_status;
+  mutable int m_count;
+
+  friend class communicator;
+  friend class request;
+};
+
+
+} } // end namespace boost::mpi
+
+#endif // BOOST_MPI_STATUS_HPP