Index: boost/iostreams/device/mapped_file.hpp
===================================================================
--- a/boost/iostreams/device/mapped_file.hpp	(revision 57570)
+++ b/boost/iostreams/device/mapped_file.hpp	(working copy)
@@ -393,10 +393,10 @@
     param_type params(p);
     if (params.flags) {
         if (params.flags != mapped_file::readonly)
-            throw new BOOST_IOSTREAMS_FAILURE("invalid flags");
+            throw BOOST_IOSTREAMS_FAILURE("invalid flags");
     } else {
         if (params.mode & BOOST_IOS::out)
-            throw new BOOST_IOSTREAMS_FAILURE("invalid mode");
+            throw BOOST_IOSTREAMS_FAILURE("invalid mode");
         params.mode |= BOOST_IOS::in;
     }
     open_impl(params);
@@ -479,10 +479,10 @@
     param_type params(p);
     if (params.flags) {
         if (params.flags & mapped_file::readonly)
-            throw new BOOST_IOSTREAMS_FAILURE("invalid flags");
+            throw BOOST_IOSTREAMS_FAILURE("invalid flags");
     } else {
         if (params.mode & BOOST_IOS::in)
-            throw new BOOST_IOSTREAMS_FAILURE("invalid mode");
+            throw BOOST_IOSTREAMS_FAILURE("invalid mode");
         params.mode |= BOOST_IOS::out;
     }
     mapped_file::open(params);