use a different workaround for non-default-constructible type list el…

…ements Suggested here: boostorg/mp11#23
bernhardmgruber · Mar 4, 2021 · a862c79 · a862c79
1 parent 8c25e97
commit a862c79
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/include/llama/Core.hpp b/include/llama/Core.hpp
@@ -383,8 +383,8 @@ namespace llama
             std::size_t size = 0;
 #endif
             using FlatDD = FlattenDatumDomain<DatumStruct<DatumElements...>>;
-            mp_for_each<mp_iota<mp_size<FlatDD>>>([&](auto i) constexpr {
-                using T = mp_at<FlatDD, decltype(i)>;
+            mp_for_each<mp_transform<mp_identity, FlatDD>>([&](auto e) constexpr {
+                using T = typename decltype(e)::type;
                 internal::roundUpToMultiple(size, alignof(T));
                 size += sizeof(T);
             });