Implement the class submdspan_mapping_result and add it to the std
module.
PR libstdc++/110352
libstdc++-v3/ChangeLog:
* include/std/mdspan (submdspan_mapping_result): New class.
* src/c++23/std.cc.in (submdspan_mapping_result): Add.
Signed-off-by: Luc Grosheintz <[email protected]>
---
libstdc++-v3/include/std/mdspan | 7 +++++++
libstdc++-v3/src/c++23/std.cc.in | 3 ++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/libstdc++-v3/include/std/mdspan b/libstdc++-v3/include/std/mdspan
index 00bb9716a9d..cef6d625982 100644
--- a/libstdc++-v3/include/std/mdspan
+++ b/libstdc++-v3/include/std/mdspan
@@ -361,6 +361,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
[[no_unique_address]] extent_type extent{};
[[no_unique_address]] stride_type stride{};
};
+
+ template<typename _Mapping>
+ struct submdspan_mapping_result
+ {
+ [[no_unique_address]] _Mapping mapping = _Mapping();
+ size_t offset{};
+ };
#endif
template<typename _IndexType, size_t... _Extents>
diff --git a/libstdc++-v3/src/c++23/std.cc.in b/libstdc++-v3/src/c++23/std.cc.in
index bfccf3cec95..9cf5fa7dcb6 100644
--- a/libstdc++-v3/src/c++23/std.cc.in
+++ b/libstdc++-v3/src/c++23/std.cc.in
@@ -1875,8 +1875,9 @@ export namespace std
using strided_slice;
using full_extent_t;
using full_extent;
+ using submdspan_mapping_result;
#endif
- // FIXME submdspan_mapping_result, submdspan_extents, mdsubspan
+ // FIXME submdspan_extents, mdsubspan
}
#endif
--
2.50.1
