re PR libstdc++/58357 (In C++11 std::rotate(first, middle, last) now should…

re PR libstdc++/58357 (In C++11 std::rotate(first, middle, last) now should return a forward iterator to  first + (last - middle).)

	PR libstdc++/58357
	* include/bits/algorithmfwd.h (rotate): Move to inline namespace _V2.
	* include/bits/stl_algo.h (__rotate, rotate): Likewise.

From-SVN: r220823

libstdc++-v3/ChangeLog

+2015-02-19  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/58357
+	* include/bits/algorithmfwd.h (rotate): Move to inline namespace _V2.
+	* include/bits/stl_algo.h (__rotate, rotate): Likewise.
+
 2015-02-19  Hans-Peter Nilsson  <hp@axis.com>
 
 	PR testsuite/65093

libstdc++-v3/include/bits/algorithmfwd.h

@@ -530,9 +530,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     _OIter 
     reverse_copy(_BIter, _BIter, _OIter);
 
-  template<typename _FIter>
-    _FIter
-    rotate(_FIter, _FIter, _FIter);
+  inline namespace _V2
+  {
+    template<typename _FIter>
+      _FIter
+      rotate(_FIter, _FIter, _FIter);
+  }
 
   template<typename _FIter, typename _OIter>
     _OIter 

libstdc++-v3/include/bits/stl_algo.h

@@ -1237,6 +1237,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       return __m;
     }
 
+  inline namespace _V2
+  {
+
   /// This is a helper function for the rotate algorithm.
   template<typename _ForwardIterator>
     _ForwardIterator
@@ -1438,6 +1441,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 			   std::__iterator_category(__first));
     }
 
+  } // namespace _V2
+
   /**
    *  @brief Copy a sequence, rotating its elements.
    *  @ingroup mutating_algorithms