diff mbox series

libstdc++: add missing typename for dependent type in std::ranges::elements_view [PR100900]

Message ID 20210604065927.3930935-1-avi@scylladb.com
State New
Headers show
Series libstdc++: add missing typename for dependent type in std::ranges::elements_view [PR100900] | expand

Commit Message

Avi Kivity June 4, 2021, 6:59 a.m. UTC 
Clang complains about the missing typename. I believe it's not required
in a more complete implementation of C++, but it's nicer to support
less complete implementations.
---
 libstdc++-v3/include/std/ranges | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Jonathan Wakely June 7, 2021, 2:54 p.m. UTC | #1 
The patch is approved, if Patrick doesn't do it I'll push it later
today. Thanks!
diff mbox series

Patch

diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges
index 8bf359e477c..220a44e11a8 100644
--- a/libstdc++-v3/include/std/ranges
+++ b/libstdc++-v3/include/std/ranges
@@ -3583,7 +3583,7 @@  namespace views::__adaptor
 	  static auto _S_iter_cat()
 	  {
 	    using _Base = elements_view::_Base<_Const>;
-	    using _Cat = iterator_traits<iterator_t<_Base>>::iterator_category;
+	    using _Cat = typename iterator_traits<iterator_t<_Base>>::iterator_category;
 	    using _Res = decltype((std::get<_Nm>(*std::declval<iterator_t<_Base>>())));
 	    if constexpr (!is_lvalue_reference_v<_Res>)
 	      return input_iterator_tag{};