Skip to content

Fix __is_primary_std_template for libc++ #6243

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Oct 15, 2025
Merged

Fix __is_primary_std_template for libc++ #6243

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 3 additions & 1 deletion libcudacxx/include/cuda/std/__type_traits/is_primary_template.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -84,11 +84,13 @@ template <class _Iter>
struct __is_primary_std_template : bool_constant<__is_primary_std_template_impl<_Iter, is_pointer_v<_Iter>>>
{};
# elif defined(_LIBCPP_VERSION)

// libc++ uses the same mechanism than we do with __primary_template
template <class _Traits>
using __test_for_primary_std_template = enable_if_t<_IsSame<_Traits, typename _Traits::__primary_template>::value>;
template <class _Iter>
using __is_primary_std_template = _IsValidExpansion<__test_for_primary_template, ::std::iterator_traits<_Iter>>;
using __is_primary_std_template = _IsValidExpansion<__test_for_primary_std_template, ::std::iterator_traits<_Iter>>;

# elif defined(_MSVC_STL_VERSION) || defined(_IS_WRS)
// On MSVC we must check for the base class because `_From_primary` is only defined in C++20
template <class _Iter, bool>
Expand Down
Loading