[test] Permutation_iterator test fix to use transform_reduce_serial (#1391)

std::transform_reduce is not always present in all configurations / implementations of the standard library.  We therefore provide and should use transform_reduce_serial for establishing expected values in testing.
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Signed-off-by: Dan Hoeflinger <[email protected]>

Author: danhoeflinger

test/parallel_api/iterator/permutation_iterator_parallel_transform_reduce.pass.cpp

@@ -56,8 +56,10 @@ DEFINE_TEST_PERM_IT(test_transform_reduce, PermItIndexTag)
                     dpl::copy(exec, permItBegin, permItEnd, sourceData.begin());
                     wait_and_throw(exec);
 
-                    const auto expected = ::std::transform_reduce(sourceData.begin(), sourceData.end(), TestValueType{},
-                                                                  ::std::plus<TestValueType>(), ::std::negate<TestValueType>());
+                    const auto expected =
+                        TestUtils::transform_reduce_serial(sourceData.begin(), sourceData.end(), TestValueType{},
+                                                           ::std::plus<TestValueType>(),
+                                                           ::std::negate<TestValueType>());
                     EXPECT_EQ(expected, result, "Wrong result of dpl::transform_reduce");
                 });
         }