http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43813
--- Comment #15 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-03-04
12:00:52 UTC ---
(In reply to comment #14)
> Well, besides wrapping the thing in an __is_input_iterator helper.
That's what I was going to suggest, possibly using an alias template:
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ private:
+ template<typename _InIter>
+ using _RequireInputerIter = typename
+ enable_if<is_convertible<typename
+ iterator_traits<_InputIterator>::iterator_category,
+ input_iterator_tag>::value>::type;
+
+ public:
+ template<typename _InputIterator, typename =
+ _RequireInputIter<_InputIterator>>
+ deque(_InputIterator __first, _InputIterator __last,
+ const allocator_type& __a = allocator_type())
+ : _Base(__a)
+ {
+ typedef typename iterator_traits<_InputIterator>::
+ iterator_category _IterCategory;
+ _M_range_initialize(__first, __last, _IterCategory());
+ }
+#else
