1 files changed, 29 insertions, 0 deletions

diff --git a/contrib/llvm-project/libcxx/modules/std/mdspan.inc b/contrib/llvm-project/libcxx/modules/std/mdspan.inc
new file mode 100644
index 000000000000..ba3f3926c3ab
--- /dev/null
+++ b/contrib/llvm-project/libcxx/modules/std/mdspan.inc
@@ -0,0 +1,29 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+export namespace std {
+#if _LIBCPP_STD_VER >= 23
+  // [mdspan.extents], class template extents
+  using std::extents;
+
+  // [mdspan.extents.dextents], alias template dextents
+  using std::dextents;
+
+  // [mdspan.layout], layout mapping
+  using std::layout_left;
+  using std::layout_right;
+  using std::layout_stride;
+
+  // [mdspan.accessor.default], class template default_accessor
+  using std::default_accessor;
+
+  // [mdspan.mdspan], class template mdspan
+  using std::mdspan;
+#endif // _LIBCPP_STD_VER >= 23
+} // namespace std