libstdc++: Fix new basic_stringbuf constructor

libstdc++-v3/ChangeLog:

	* include/std/sstream (basic_stringbuf(__string_type&&, openmode)):
	Call _M_init_syncbuf to set up get/put areas. Also qualify
	std::move.

diff --git a/libstdc++-v3/include/std/sstream b/libstdc++-v3/include/std/sstream
index f03f3abd6fc3c0c01abdd0be669882a873ebbc31..33a00486606ccbd3b32516e7e5900a0e6f757498 100644 (file)
--- a/libstdc++-v3/include/std/sstream
+++ b/libstdc++-v3/include/std/sstream
@@ -181,8 +181,8 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
       basic_stringbuf(__string_type&& __s,
                      ios_base::openmode __mode = ios_base::in
                                                  | ios_base::out )
-      : __streambuf_type(), _M_mode(__mode), _M_string(move(__s))
-      { }
+      : __streambuf_type(), _M_mode(__mode), _M_string(std::move(__s))
+      { _M_stringbuf_init(__mode); }
 
       template<typename _SAlloc>
       basic_stringbuf(const basic_string<_CharT, _Traits, _SAlloc>& __s,