fixup! modernize-use-equals-default

Author: Jacobfaib

libcudacxx/include/cuda/std/__utility/typeid.h

@@ -302,7 +302,7 @@ struct __type_info_ref_ : __type_info
       : __type_info(__other)
   {}
 
-  _CCCL_API constexpr __type_info_ref_(__type_info_ref_ const& __other) noexcept = default;
+  _CCCL_HIDE_FROM_ABI constexpr __type_info_ref_(__type_info_ref_ const& __other) noexcept = default;
 };
 
 [[nodiscard]] _CCCL_API constexpr __type_info_ref_ __type_info_ptr_::operator*() const noexcept
@@ -371,8 +371,8 @@ struct __type_info
   }
 
 #  if _CCCL_STD_VER <= 2017
-  [[nodiscard]] _CCCL_HOST_API friend constexpr bool
-  operator!=(const __type_info& __lhs, const __type_info& __rhs) noexcept
+  [[nodiscard]]
+  _CCCL_HOST_API friend constexpr bool operator!=(const __type_info& __lhs, const __type_info& __rhs) noexcept
   {
     return !(__lhs == __rhs);
   }

thrust/thrust/host_vector.h

@@ -70,9 +70,7 @@ class host_vector : public detail::vector_base<T, Alloc>
    *     .. versionadded:: 2.2.0
    *  \endverbatim
    */
-  _CCCL_HOST host_vector()
-      : Parent()
-  {}
+  _CCCL_HOST host_vector();
 
   /*! This constructor creates an empty \p host_vector.
    *  \param alloc The allocator to use by this host_vector.
@@ -93,7 +91,7 @@ class host_vector : public detail::vector_base<T, Alloc>
    */
   //  Define an empty destructor to explicitly specify
   //  its execution space qualifier, as a workaround for nvcc warning
-  _CCCL_HOST ~host_vector() = default;
+  _CCCL_HOST ~host_vector();
 
   /*! This constructor creates a \p host_vector with the given
    *  size.
@@ -701,6 +699,14 @@ class host_vector : public detail::vector_base<T, Alloc>
   }
 };
 
+// Must define these separately otherwise NVCC complains that __host__ is ignored if the
+// functions are explicitly defaulted.
+template <typename T, typename Alloc>
+host_vector<T, Alloc>::host_vector() = default;
+
+template <typename T, typename Alloc>
+host_vector<T, Alloc>::~host_vector() = default;
+
 /*! \}
  */