diff DEPENDENCIES/generic/include/boost/mpi/nonblocking.hpp @ 101:c530137014c0

Update Boost headers (1.58.0)

--- a/DEPENDENCIES/generic/include/boost/mpi/nonblocking.hpp	Fri Sep 04 12:01:02 2015 +0100
+++ b/DEPENDENCIES/generic/include/boost/mpi/nonblocking.hpp	Mon Sep 07 11:12:49 2015 +0100
@@ -59,8 +59,10 @@
   ForwardIterator current = first;
   while (true) {
     // Check if we have found a completed request. If so, return it.
-    if (optional<status> result = current->test())
-      return std::make_pair(*result, current);
+    if (current->m_requests[0] != MPI_REQUEST_NULL &&
+        current->m_requests[1] != MPI_REQUEST_NULL)
+      if (optional<status> result = current->test())
+        return std::make_pair(*result, current);
 
     // Check if this request (and all others before it) are "trivial"
     // requests, e.g., they can be represented with a single