Avoid invalid compiler warning with VS2026 (#7077)

miscco · web-flow · commit c079d0fbf4eb · 2026-01-05T10:48:27.000Z
internally we are seeing invalid compiler warnings about a missing `template` keyword which is definitely there.

To unblock internal CI disable that warning until the actual compiler issue is found

Addresses nvbug5765092
diff --git a/libcudacxx/test/support/type_algorithms.h b/libcudacxx/test/support/type_algorithms.h
@@ -53,12 +53,17 @@ template <class... Types>
 __host__ __device__ constexpr void swallow(Types...)
 {}
 
+_CCCL_DIAG_PUSH
+_CCCL_DIAG_SUPPRESS_MSVC(4864) // nvbug5765092 latest toolchain complains about missing template
+
 template <class... Types, class Functor>
 __host__ __device__ constexpr void for_each(type_list<Types...>, Functor f)
 {
   swallow((f.template operator()<Types>(), 0)...);
 }
 
+_CCCL_DIAG_POP
+
 template <class T>
 struct type_identity
 {

Original file line number	Diff line number	Diff line change
`@@ -53,12 +53,17 @@ template <class... Types>`
`53`	`53`	`__host__ __device__ constexpr void swallow(Types...)`
`54`	`54`	`{}`
`55`	`55`
	`56`	`+_CCCL_DIAG_PUSH`
	`57`	`+_CCCL_DIAG_SUPPRESS_MSVC(4864) // nvbug5765092 latest toolchain complains about missing template`
	`58`	`+`
`56`	`59`	`template <class... Types, class Functor>`
`57`	`60`	`__host__ __device__ constexpr void for_each(type_list<Types...>, Functor f)`
`58`	`61`	`{`
`59`	`62`	`swallow((f.template operator()<Types>(), 0)...);`
`60`	`63`	`}`
`61`	`64`
	`65`	`+_CCCL_DIAG_POP`
	`66`	`+`
`62`	`67`	`template <class T>`
`63`	`68`	`struct type_identity`
`64`	`69`	`{`