Update Kokkos library in LAMMPS to v3.3.0

lib/kokkos/core/unit_test/TestUtilities.hpp

@@ -52,6 +52,24 @@
 
 namespace Test {
 
+void test_is_specialization_of() {
+  using Kokkos::Impl::is_specialization_of;
+  static_assert(is_specialization_of<Kokkos::pair<float, int>, Kokkos::pair>{},
+                "");
+  static_assert(!is_specialization_of<Kokkos::View<int*>, Kokkos::pair>{}, "");
+  static_assert(is_specialization_of<Kokkos::View<int*>, Kokkos::View>{}, "");
+  // NOTE Not removing cv-qualifiers
+  static_assert(!is_specialization_of<Kokkos::View<int*> const, Kokkos::View>{},
+                "");
+  // NOTE Would not compile because Kokkos::Array takes a non-type template
+  // parameter
+  // static_assert(is_specialization_of<Kokkos::Array<int, 4>, Kokkos::Array>{},
+  // "");
+  // But this is fine of course
+  static_assert(!is_specialization_of<Kokkos::Array<float, 2>, Kokkos::pair>{},
+                "");
+}
+
 inline void test_utilities() {
   using namespace Kokkos::Impl;
 
@@ -353,4 +371,22 @@ inline void test_utilities() {
   }
 }
 
+template <std::size_t... Idxs, class... Args>
+std::size_t do_comma_emulation_test(std::integer_sequence<std::size_t, Idxs...>,
+                                    Args... args) {
+  // Count the bugs, since ASSERT_EQ is a statement and not an expression
+  std::size_t bugs = 0;
+  // Ensure in-order evaluation
+  std::size_t i = 0;
+  KOKKOS_IMPL_FOLD_COMMA_OPERATOR(bugs += std::size_t(Idxs != i++) /*, ...*/);
+  // Ensure expansion of multiple packs works
+  KOKKOS_IMPL_FOLD_COMMA_OPERATOR(bugs += std::size_t(Idxs != args) /*, ...*/);
+  return bugs;
+}
+
+TEST(utilities, comma_operator_emulation) {
+  ASSERT_EQ(
+      0, do_comma_emulation_test(std::make_index_sequence<5>{}, 0, 1, 2, 3, 4));
+}
+
 }  // namespace Test