On Fri, Dec 12, 2025 at 12:25 PM Luc Grosheintz <[email protected]> wrote:
> The submdspan feature broke compatibility with clang, due to a missing > '::template type'. > > libstdc++-v3/ChangeLog: > > * include/std/mdspan (submdspan): Fix missing '::template'. > > Signed-off-by: Luc Grosheintz <[email protected]> > LGTM. I will handle merging it when it gets approved. > --- > > After this change I can compile several examples that use submdspan with > clang++ using the libstdc++ as the standard library (and I have no > examples that don't compile). > > libstdc++-v3/include/std/mdspan | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/libstdc++-v3/include/std/mdspan > b/libstdc++-v3/include/std/mdspan > index dc0aa4f9584..cedf597d3c2 100644 > --- a/libstdc++-v3/include/std/mdspan > +++ b/libstdc++-v3/include/std/mdspan > @@ -3376,7 +3376,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION > template<typename _ElementType, typename _Extents, typename _Layout, > typename _Accessor, typename... _RawSlices> > requires (sizeof...(_RawSlices) == _Extents::rank() > - && __mdspan::__sliceable_mapping<typename > _Layout::mapping<_Extents>, > + && __mdspan::__sliceable_mapping<typename _Layout::template > mapping<_Extents>, > > __mdspan::__full_extent_t<_RawSlices>...>) > constexpr auto > submdspan( > -- > 2.52.0 > >
