Imported Upstream version 1.57.0

[platform/upstream/boost.git] / boost / interprocess / sync / spin / interprocess_barrier.hpp

diff --git a/boost/interprocess/sync/spin/interprocess_barrier.hpp b/boost/interprocess/sync/spin/interprocess_barrier.hpp
index f8ee099..5f88dd4 100644 (file)
--- a/boost/interprocess/sync/spin/interprocess_barrier.hpp
+++ b/boost/interprocess/sync/spin/interprocess_barrier.hpp
@@ -12,6 +12,10 @@
 #include <boost/interprocess/detail/posix_time_types_wrk.hpp>
 #include <boost/interprocess/sync/scoped_lock.hpp>
 
+#if defined(_MSC_VER)
+#  pragma once
+#endif
+
 namespace boost {
 namespace interprocess {