libstdc++: Implement LWG 3568 change to ranges::basic_istream_view

libstdc++-v3/ChangeLog:

	* include/std/ranges (basic_istream_view::_M_object): Value
	initialize as per LWG 3568.

diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges
index dc1fb7117c14e19aae3f378f789987f523c8d83c..c3a6dbab6fd2a45c734d3637bd94e1dd9a78d21d 100644 (file)
--- a/libstdc++-v3/include/std/ranges
+++ b/libstdc++-v3/include/std/ranges
@@ -726,7 +726,7 @@ namespace views
 
     private:
       basic_istream<_CharT, _Traits>* _M_stream;
-      _Val _M_object;
+      _Val _M_object = _Val();
 
       struct _Iterator
       {