[pstl] Remove warnings in tests and headers

Mostly unused parameter, unused local typedefs and shadowed declarations.
This massaging it necessary if we want to be able to run the tests under
the libc++ lit configuration.

llvm-svn: 363872

41 files changed, 117 insertions, 118 deletions

diff --git a/pstl/include/pstl/internal/algorithm_impl.h b/pstl/include/pstl/internal/algorithm_impl.h
index da45b78..a809873 100644
--- a/pstl/include/pstl/internal/algorithm_impl.h
+++ b/pstl/include/pstl/internal/algorithm_impl.h
@@ -604,7 +604,6 @@ __find_subrange(_RandomAccessIterator __first, _RandomAccessIterator __last, _Ra
         return __last; // According to the standard last shall be returned when count < 1
     }
 
-    auto __n = __global_last - __first;
     auto __unary_pred = __equal_value_by_pred<_Tp, _BinaryPredicate>(__value, __pred);
     while (__first != __last && (static_cast<_Size>(__global_last - __first) >= __count))
     {
@@ -821,7 +820,7 @@ __pattern_search_n(_ExecutionPolicy&& __exec, _RandomAccessIterator __first, _Ra
                    _Size __count, const _Tp& __value, _BinaryPredicate __pred, _IsVector __is_vector,
                    /*is_parallel=*/std::true_type) noexcept
 {
-    if (__last - __first == __count)
+    if (static_cast<_Size>(__last - __first) == __count)
     {
         const bool __result = !__internal::__pattern_any_of(
             std::forward<_ExecutionPolicy>(__exec), __first, __last,
@@ -2136,7 +2135,7 @@ __pattern_partial_sort(_ExecutionPolicy&& __exec, _RandomAccessIterator __first,
     const auto __n = __middle - __first;
     if(__n == 0)
         return;
-        
+
     __internal::__except_handler([&]() {
         __par_backend::__parallel_stable_sort(
             std::forward<_ExecutionPolicy>(__exec), __first, __last, __comp,
diff --git a/pstl/include/pstl/internal/parallel_backend_utils.h b/pstl/include/pstl/internal/parallel_backend_utils.h
index 37b6e69..d84496d 100644
--- a/pstl/include/pstl/internal/parallel_backend_utils.h
+++ b/pstl/include/pstl/internal/parallel_backend_utils.h
@@ -79,8 +79,8 @@ struct __serial_move_merge
                         }
                         else if (__n == 0)
                         {
-                            const auto __i = __zs - __zs_beg;
-                            if (__same_move_seq || __i < __nx)
+                            const auto __j = __zs - __zs_beg;
+                            if (__same_move_seq || __j < __nx)
                                 __zs = __move_sequence_x(__ys, __ye, __zs);
                             else
                                 __zs = __move_sequence_y(__ys, __ye, __zs);
@@ -97,8 +97,8 @@ struct __serial_move_merge
                         ++__zs, --__n;
                         if (++__xs == __xe)
                         {
-                            const auto __i = __zs - __zs_beg;
-                            if (__same_move_seq || __i < __nx)
+                            const auto __j = __zs - __zs_beg;
+                            if (__same_move_seq || __j < __nx)
                                 __move_sequence_x(__ys, __ye, __zs);
                             else
                                 __move_sequence_y(__ys, __ye, __zs);
@@ -106,8 +106,8 @@ struct __serial_move_merge
                         }
                         else if (__n == 0)
                         {
-                            const auto i = __zs - __zs_beg;
-                            if (__same_move_seq || __i < __nx)
+                            const auto __j = __zs - __zs_beg;
+                            if (__same_move_seq || __j < __nx)
                             {
                                 __zs = __move_sequence_x(__xs, __xe, __zs);
                                 __move_sequence_x(__ys, __ye, __zs);
diff --git a/pstl/test/std/algorithms/alg.merge/inplace_merge.pass.cpp b/pstl/test/std/algorithms/alg.merge/inplace_merge.pass.cpp
index 7a8d065..9efe8f8 100644
--- a/pstl/test/std/algorithms/alg.merge/inplace_merge.pass.cpp
+++ b/pstl/test/std/algorithms/alg.merge/inplace_merge.pass.cpp
@@ -42,8 +42,6 @@ struct test_one_policy
     operator()(Policy&& exec, BiDirIt1 first1, BiDirIt1 last1, BiDirIt1 first2, BiDirIt1 last2, Size n, Size m,
                Generator1 generator1, Generator2 generator2, Compare comp)
     {
-
-        using T = typename std::iterator_traits<BiDirIt1>::value_type;
         const BiDirIt1 mid1 = std::next(first1, m);
         fill_data(first1, mid1, generator1);
         fill_data(mid1, last1, generator2);
@@ -60,8 +58,8 @@ struct test_one_policy
     template <typename Policy, typename BiDirIt1, typename Size, typename Generator1, typename Generator2,
               typename Compare>
     typename std::enable_if<is_same_iterator_category<BiDirIt1, std::forward_iterator_tag>::value, void>::type
-    operator()(Policy&& exec, BiDirIt1 first1, BiDirIt1 last1, BiDirIt1 first2, BiDirIt1 last2, Size n, Size m,
-               Generator1 generator1, Generator2 generator2, Compare comp)
+    operator()(Policy&&, BiDirIt1, BiDirIt1, BiDirIt1, BiDirIt1, Size, Size,
+               Generator1, Generator2, Compare)
     {
     }
 };
diff --git a/pstl/test/std/algorithms/alg.merge/merge.pass.cpp b/pstl/test/std/algorithms/alg.merge/merge.pass.cpp
index b215beb..5912775 100644
--- a/pstl/test/std/algorithms/alg.merge/merge.pass.cpp
+++ b/pstl/test/std/algorithms/alg.merge/merge.pass.cpp
@@ -47,7 +47,7 @@ struct test_merge
     operator()(Policy&& exec, std::reverse_iterator<InputIterator1> first1, std::reverse_iterator<InputIterator1> last1,
                std::reverse_iterator<InputIterator2> first2, std::reverse_iterator<InputIterator2> last2,
                std::reverse_iterator<OutputIterator> out_first, std::reverse_iterator<OutputIterator> out_last,
-               Compare comp)
+               Compare)
     {
         using namespace std;
         typedef typename std::iterator_traits<std::reverse_iterator<InputIterator1>>::value_type T;
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/alg.copy/copy_if.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/alg.copy/copy_if.pass.cpp
index d2bb83b..e0bd44d 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/alg.copy/copy_if.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/alg.copy/copy_if.pass.cpp
@@ -42,7 +42,7 @@ struct run_copy_if
               typename Predicate, typename T>
     void
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
-               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size n,
+               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2, Size n,
                Predicate pred, T trash)
     {
         // Cleaning
@@ -135,7 +135,7 @@ main()
 #endif
 
 #if !_PSTL_ICC_16_17_TEST_REDUCTION_RELEASE_BROKEN
-    test<int32_t>(-666, [](const int32_t& x) { return true; }, [](size_t j) { return j; }, false);
+    test<int32_t>(-666, [](const int32_t&) { return true; }, [](size_t j) { return j; }, false);
 #endif
 
     test_algo_basic_double<int32_t>(run_for_rnd_fw<test_non_const>());
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/is_partitioned.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/is_partitioned.pass.cpp
index 874595f..d2608cf 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/is_partitioned.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/is_partitioned.pass.cpp
@@ -89,7 +89,7 @@ main()
     test<int32_t>([](const int32_t x) { return x > 1000; });
     test<uint16_t>([](const uint16_t x) { return x % 5 < 3; });
 #if !_PSTL_ICC_18_TEST_EARLY_EXIT_MONOTONIC_RELEASE_BROKEN && !_PSTL_ICC_19_TEST_IS_PARTITIONED_RELEASE_BROKEN
-    test<LocalWrapper<float64_t>>([](const LocalWrapper<float64_t>& x) { return true; });
+    test<LocalWrapper<float64_t>>([](const LocalWrapper<float64_t>&) { return true; });
 #endif
 
     test_algo_basic_single<int32_t>(run_for_rnd_fw<test_non_const>());
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/partition.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/partition.pass.cpp
index 716f6dd..98b0e51 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/partition.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/partition.pass.cpp
@@ -55,7 +55,7 @@ is_equal(Iterator first, Iterator last, Iterator d_first)
 
 template <typename Iterator>
 typename std::enable_if<!std::is_trivial<typename std::iterator_traits<Iterator>::value_type>::value, bool>::type
-is_equal(Iterator first, Iterator last, Iterator d_first)
+is_equal(Iterator, Iterator, Iterator)
 {
     return true;
 }
@@ -95,7 +95,7 @@ struct test_one_policy
 
     template <typename Policy, typename BiDirIt, typename Size, typename UnaryOp, typename Generator>
     typename std::enable_if<!is_same_iterator_category<BiDirIt, std::forward_iterator_tag>::value, void>::type
-    operator()(Policy&& exec, BiDirIt first, BiDirIt last, BiDirIt exp_first, BiDirIt exp_last, Size n,
+    operator()(Policy&& exec, BiDirIt first, BiDirIt last, BiDirIt exp_first, BiDirIt exp_last, Size,
                UnaryOp unary_op, Generator generator)
     {
         // partition
@@ -119,8 +119,8 @@ struct test_one_policy
     }
     template <typename Policy, typename BiDirIt, typename Size, typename UnaryOp, typename Generator>
     typename std::enable_if<is_same_iterator_category<BiDirIt, std::forward_iterator_tag>::value, void>::type
-    operator()(Policy&& exec, BiDirIt first, BiDirIt last, BiDirIt exp_first, BiDirIt exp_last, Size n,
-               UnaryOp unary_op, Generator generator)
+    operator()(Policy&&, BiDirIt, BiDirIt, BiDirIt, BiDirIt, Size,
+               UnaryOp, Generator)
     {
     }
 };
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/partition_copy.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/partition_copy.pass.cpp
index dfb76e3..6dc9938 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/partition_copy.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/alg.partitions/partition_copy.pass.cpp
@@ -25,7 +25,7 @@ struct test_partition_copy
               typename UnaryOp>
     void
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator true_first,
-               OutputIterator true_last, OutputIterator2 false_first, OutputIterator2 false_last, UnaryOp unary_op)
+               OutputIterator, OutputIterator2 false_first, OutputIterator2, UnaryOp unary_op)
     {
 
         auto actual_ret = std::partition_copy(exec, first, last, true_first, false_first, unary_op);
@@ -101,7 +101,7 @@ main()
     test<int32_t>([](const int32_t value) { return value % 2; });
 
 #if !_PSTL_ICC_16_17_TEST_REDUCTION_RELEASE_BROKEN
-    test<int32_t>([](const int32_t value) { return true; });
+    test<int32_t>([](const int32_t) { return true; });
 #endif
 
     test<float64_t>([](const float64_t value) { return value > 2 << 6; });
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/alg.reverse/reverse.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/alg.reverse/reverse.pass.cpp
index 9d4615c..0133019 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/alg.reverse/reverse.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/alg.reverse/reverse.pass.cpp
@@ -52,7 +52,7 @@ struct test_one_policy
 
     template <typename ExecutionPolicy, typename Iterator1, typename Iterator2>
     typename std::enable_if<is_same_iterator_category<Iterator1, std::forward_iterator_tag>::value>::type
-    operator()(ExecutionPolicy&& exec, Iterator1 data_b, Iterator1 data_e, Iterator2 actual_b, Iterator2 actual_e)
+    operator()(ExecutionPolicy&&, Iterator1, Iterator1, Iterator2, Iterator2)
     {
     }
 };
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/alg.reverse/reverse_copy.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/alg.reverse/reverse_copy.pass.cpp
index 3edd3e8..cc2bf18 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/alg.reverse/reverse_copy.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/alg.reverse/reverse_copy.pass.cpp
@@ -79,7 +79,6 @@ struct test_one_policy
     {
         using namespace std;
         using T = typename iterator_traits<Iterator1>::value_type;
-        using DifferenceType = typename iterator_traits<Iterator1>::difference_type;
 
         fill(actual_b, actual_e, T(-123));
         Iterator1 actual_return = reverse_copy(exec, data_b, data_e, actual_b);
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/copy_move.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/copy_move.pass.cpp
index 18ba11b..cf395eb 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/copy_move.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/copy_move.pass.cpp
@@ -44,7 +44,7 @@ struct run_copy
               typename T>
     void
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
-               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size size,
+               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2, Size size,
                Size n, T trash)
     {
         // Cleaning
@@ -96,8 +96,8 @@ struct run_move
     template <typename Policy, typename InputIterator, typename OutputIterator, typename OutputIterator2, typename Size>
     void
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
-               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size size,
-               Size n, T trash)
+               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2, Size size,
+               Size, T trash)
     {
         // Cleaning
         std::fill_n(expected_first, size, trash);
@@ -139,8 +139,8 @@ struct run_move<Wrapper<T>>
     template <typename Policy, typename InputIterator, typename OutputIterator, typename OutputIterator2, typename Size>
     void
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
-               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size size,
-               Size n, Wrapper<T> trash)
+               OutputIterator out_last, OutputIterator2, OutputIterator2, Size size,
+               Size, Wrapper<T> trash)
     {
         // Cleaning
         std::fill_n(out_first, size, trash);
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/fill.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/fill.pass.cpp
index d54a7de..f1ddf5d 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/fill.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/fill.pass.cpp
@@ -73,7 +73,7 @@ template <typename T>
 void
 test_fill_by_type(std::size_t n)
 {
-    Sequence<T> in(n, [](std::size_t v) -> T { return T(0); }); //fill with zeros
+    Sequence<T> in(n, [](std::size_t) -> T { return T(0); }); //fill with zeros
     T value = -1;
 
     invoke_on_all_policies(test_fill(), in.begin(), in.end(), value);
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/generate.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/generate.pass.cpp
index 185e98c..89aa004 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/generate.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/generate.pass.cpp
@@ -54,11 +54,11 @@ struct test_generate
         {
             Generator_count<T> g;
             const auto m = n / 2;
-            auto last = generate_n(exec, first, m, g);
-            Size count = std::count(first, last, g.default_value());
-            EXPECT_TRUE(count == m && last == std::next(first, m),
+            auto actual_last = generate_n(exec, first, m, g);
+            Size count = std::count(first, actual_last, g.default_value());
+            EXPECT_TRUE(count == m && actual_last == std::next(first, m),
                         "generate_n wrong result for generate_n");
-            std::fill(first, last, T(0));
+            std::fill(first, actual_last, T(0));
         }
     }
 };
@@ -69,7 +69,7 @@ test_generate_by_type()
 {
     for (size_t n = 0; n <= 100000; n = n < 16 ? n + 1 : size_t(3.1415 * n))
     {
-        Sequence<T> in(n, [](size_t v) -> T { return T(0); }); //fill by zero
+        Sequence<T> in(n, [](size_t) -> T { return T(0); }); //fill by zero
 
         invoke_on_all_policies(test_generate(), in.begin(), in.end(), in.size());
     }
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/remove.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/remove.pass.cpp
index 010e3c6..6c56729 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/remove.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/remove.pass.cpp
@@ -132,7 +132,7 @@ int32_t
 main()
 {
 #if !_PSTL_ICC_18_TEST_EARLY_EXIT_MONOTONIC_RELEASE_BROKEN
-    test<int32_t>(666, 42, [](int32_t val) { return true; }, [](size_t j) { return j; });
+    test<int32_t>(666, 42, [](int32_t) { return true; }, [](size_t j) { return j; });
 #endif
 
     test<int32_t>(666, 2001, [](const int32_t& val) { return val != 2001; },
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/remove_copy.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/remove_copy.pass.cpp
index 1dabb81..a21afad 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/remove_copy.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/remove_copy.pass.cpp
@@ -22,7 +22,7 @@ struct run_remove_copy
               typename T>
     void
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
-               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size n,
+               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2, Size n,
                const T& value, T trash)
     {
         // Cleaning
@@ -30,8 +30,9 @@ struct run_remove_copy
         std::fill_n(out_first, n, trash);
 
         // Run copy_if
-        auto i = remove_copy(first, last, expected_first, value);
-        auto k = remove_copy(exec, first, last, out_first, value);
+        auto i = std::remove_copy(first, last, expected_first, value);
+        (void)i;
+        auto k = std::remove_copy(exec, first, last, out_first, value);
         EXPECT_EQ_N(expected_first, out_first, n, "wrong remove_copy effect");
         for (size_t j = 0; j < GuardSize; ++j)
         {
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/replace.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/replace.pass.cpp
index 9f172a4..fc5f153 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/replace.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/replace.pass.cpp
@@ -21,9 +21,9 @@ struct copy_int
 {
     int32_t value;
     int32_t copied_times = 0;
-    explicit copy_int(int32_t val = 0) { value = val; }
+    constexpr explicit copy_int(int32_t val = 0) : value(val) { }
 
-    copy_int&
+    constexpr copy_int&
     operator=(const copy_int& other)
     {
         if (&other == this)
@@ -36,7 +36,7 @@ struct copy_int
         return *this;
     }
 
-    bool
+    constexpr bool
     operator==(const copy_int& other) const
     {
         return (value == other.value);
@@ -81,7 +81,7 @@ struct test_one_policy
 
     template <typename T, typename Iterator1>
     bool
-    check(Iterator1 b, Iterator1 e)
+    check(Iterator1, Iterator1)
     {
         return true;
     }
@@ -102,13 +102,13 @@ test(Pred pred)
 
     const std::size_t max_len = 100000;
 
-    const T1 value = T1(0);
-    const T1 new_value = T1(666);
+    static constexpr T1 value = T1(0);
+    static constexpr T1 new_value = T1(666);
 
     Sequence<T2> expected(max_len);
     Sequence<T2> actual(max_len);
 
-    Sequence<T2> data(max_len, [&value](std::size_t i) {
+    Sequence<T2> data(max_len, [](std::size_t i) {
         if (i % 3 == 2)
         {
             return T1(i);
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/replace_copy.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/replace_copy.pass.cpp
index b6700f1..da74127 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/replace_copy.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/replace_copy.pass.cpp
@@ -24,7 +24,7 @@ struct test_replace_copy
               typename Predicate, typename T>
     void
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
-               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size n,
+               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2, Size n,
                Predicate pred, const T& old_value, const T& new_value, T trash)
     {
         // Cleaning
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/rotate.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/rotate.pass.cpp
index 4a4d072..b4e6873 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/rotate.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/rotate.pass.cpp
@@ -115,7 +115,7 @@ struct test_one_policy
             !std::is_same<ExecutionPolicy, std::execution::sequenced_policy>::value &&
             std::is_same<typename std::iterator_traits<Iterator>::value_type, wrapper<float32_t>>::value,
         bool>::type
-    check_move(ExecutionPolicy&& exec, Iterator b, Iterator e, Size shift)
+    check_move(ExecutionPolicy&&, Iterator b, Iterator e, Size shift)
     {
         bool result = all_of(b, e, [](wrapper<float32_t>& a) {
             bool temp = a.move_count > 0;
@@ -131,7 +131,7 @@ struct test_one_policy
           !std::is_same<ExecutionPolicy, std::execution::sequenced_policy>::value &&
           std::is_same<typename std::iterator_traits<Iterator>::value_type, wrapper<float32_t>>::value),
         bool>::type
-    check_move(ExecutionPolicy&& exec, Iterator b, Iterator e, Size shift)
+    check_move(ExecutionPolicy&&, Iterator, Iterator, Size)
     {
         return true;
     }
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/swap_ranges.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/swap_ranges.pass.cpp
index 1f4031b..87472d6 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/swap_ranges.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/swap_ranges.pass.cpp
@@ -50,7 +50,7 @@ template <typename T>
 struct check_swap
 {
     bool
-    operator()(T& a)
+    operator()(T&)
     {
         return true;
     }
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/transform_binary.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/transform_binary.pass.cpp
index e440d67..ef9e1c2 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/transform_binary.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/transform_binary.pass.cpp
@@ -60,10 +60,11 @@ struct test_one_policy
     template <typename Policy, typename InputIterator1, typename InputIterator2, typename OutputIterator,
               typename BinaryOp>
     void
-    operator()(Policy&& exec, InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2,
-               OutputIterator out_first, OutputIterator out_last, BinaryOp op)
+    operator()(Policy&& exec, InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2,
+               OutputIterator out_first, OutputIterator, BinaryOp op)
     {
-        auto orrr = std::transform(exec, first1, last1, first2, out_first, op);
+        auto result = std::transform(exec, first1, last1, first2, out_first, op);
+        (void)result;
         check_and_reset(first1, last1, first2, out_first);
     }
 };
@@ -77,7 +78,7 @@ test(Predicate pred)
         Sequence<In1> in1(n, [](size_t k) { return k % 5 != 1 ? 3 * k - 7 : 0; });
         Sequence<In2> in2(n, [](size_t k) { return k % 7 != 2 ? 5 * k - 5 : 0; });
 
-        Sequence<Out> out(n, [](size_t k) { return -1; });
+        Sequence<Out> out(n, [](size_t) { return -1; });
 
         invoke_on_all_policies(test_one_policy(), in1.begin(), in1.end(), in2.begin(), in2.end(), out.begin(),
                                out.end(), pred);
diff --git a/pstl/test/std/algorithms/alg.modifying.operations/unique_copy_equal.pass.cpp b/pstl/test/std/algorithms/alg.modifying.operations/unique_copy_equal.pass.cpp
index a3adb20..9183e3d 100644
--- a/pstl/test/std/algorithms/alg.modifying.operations/unique_copy_equal.pass.cpp
+++ b/pstl/test/std/algorithms/alg.modifying.operations/unique_copy_equal.pass.cpp
@@ -43,7 +43,7 @@ struct run_unique_copy
               typename Predicate, typename T>
     void
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
-               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2 expected_last, Size n,
+               OutputIterator out_last, OutputIterator2 expected_first, OutputIterator2, Size n,
                Predicate pred, T trash)
     {
         // Cleaning
@@ -114,7 +114,7 @@ struct test_non_const
 };
 
 int32_t
-main(int32_t argc, char* argv[])
+main()
 {
     test<Number>(Number(42, OddTag()), std::equal_to<Number>(),
                  [](int32_t j) { return Number(3 * j / 13 ^ (j & 8), OddTag()); });
@@ -122,7 +122,7 @@ main(int32_t argc, char* argv[])
     test<float32_t>(float32_t(42), std::equal_to<float32_t>(),
                     [](int32_t j) { return float32_t(5 * j / 23 ^ (j / 7)); });
 #if !_PSTL_ICC_16_17_TEST_REDUCTION_RELEASE_BROKEN
-    test<float32_t>(float32_t(42), [](float32_t x, float32_t y) { return false; },
+    test<float32_t>(float32_t(42), [](float32_t, float32_t) { return false; },
                     [](int32_t j) { return float32_t(j); }, false);
 #endif
 
diff --git a/pstl/test/std/algorithms/alg.nonmodifying/all_of.pass.cpp b/pstl/test/std/algorithms/alg.nonmodifying/all_of.pass.cpp
index 2ad0c57..2e7bdc6 100644
--- a/pstl/test/std/algorithms/alg.nonmodifying/all_of.pass.cpp
+++ b/pstl/test/std/algorithms/alg.nonmodifying/all_of.pass.cpp
@@ -59,7 +59,7 @@ test(size_t bits)
     {
 
         // Sequence of odd values
-        Sequence<T> in(n, [n, bits](size_t k) { return T(2 * HashBits(n, bits - 1) ^ 1); });
+        Sequence<T> in(n, [n, bits](size_t) { return T(2 * HashBits(n, bits - 1) ^ 1); });
 
         // Even value, or false when T is bool.
         T spike(2 * HashBits(n, bits - 1));
diff --git a/pstl/test/std/algorithms/alg.nonmodifying/any_of.pass.cpp b/pstl/test/std/algorithms/alg.nonmodifying/any_of.pass.cpp
index 9e8cbe5..0afab01 100644
--- a/pstl/test/std/algorithms/alg.nonmodifying/any_of.pass.cpp
+++ b/pstl/test/std/algorithms/alg.nonmodifying/any_of.pass.cpp
@@ -45,7 +45,7 @@ test(size_t bits)
     {
 
         // Sequence of odd values
-        Sequence<T> in(n, [n, bits](size_t k) { return T(2 * HashBits(n, bits - 1) ^ 1); });
+        Sequence<T> in(n, [n, bits](size_t) { return T(2 * HashBits(n, bits - 1) ^ 1); });
 
         // Even value, or false when T is bool.
         T spike(2 * HashBits(n, bits - 1));
diff --git a/pstl/test/std/algorithms/alg.nonmodifying/count.pass.cpp b/pstl/test/std/algorithms/alg.nonmodifying/count.pass.cpp
index e1c649d..952b145 100644
--- a/pstl/test/std/algorithms/alg.nonmodifying/count.pass.cpp
+++ b/pstl/test/std/algorithms/alg.nonmodifying/count.pass.cpp
@@ -93,7 +93,7 @@ main()
 {
     test<int32_t>(42, IsEqual<int32_t>(50, OddTag()), [](int32_t j) { return j; });
 #if !_PSTL_ICC_16_17_TEST_REDUCTION_RELEASE_BROKEN
-    test<int32_t>(42, [](const int32_t& x) { return true; }, [](int32_t j) { return j; });
+    test<int32_t>(42, [](const int32_t&) { return true; }, [](int32_t j) { return j; });
 #endif
     test<float64_t>(42, IsEqual<float64_t>(50, OddTag()), [](int32_t j) { return float64_t(j); });
     test<Number>(Number(42, OddTag()), IsEqual<Number>(Number(50, OddTag()), OddTag()),
diff --git a/pstl/test/std/algorithms/alg.nonmodifying/find.pass.cpp b/pstl/test/std/algorithms/alg.nonmodifying/find.pass.cpp
index a5d5b85..3584409 100644
--- a/pstl/test/std/algorithms/alg.nonmodifying/find.pass.cpp
+++ b/pstl/test/std/algorithms/alg.nonmodifying/find.pass.cpp
@@ -82,7 +82,7 @@ int32_t
 main()
 {
     // Note that the "hit" and "miss" functions here avoid overflow issues.
-    test<Number>(Weird(42, OddTag()), [](int32_t j) { return Number(42, OddTag()); }, // hit
+    test<Number>(Weird(42, OddTag()), [](int32_t) { return Number(42, OddTag()); }, // hit
                  [](int32_t j) { return Number(j == 42 ? 0 : j, OddTag()); });        // miss
 
     // Test with value that is equal to two different bit patterns (-0.0 and 0.0)
diff --git a/pstl/test/std/algorithms/alg.nonmodifying/find_end.pass.cpp b/pstl/test/std/algorithms/alg.nonmodifying/find_end.pass.cpp
index 466314e..8d0d542 100644
--- a/pstl/test/std/algorithms/alg.nonmodifying/find_end.pass.cpp
+++ b/pstl/test/std/algorithms/alg.nonmodifying/find_end.pass.cpp
@@ -68,8 +68,8 @@ test(const std::size_t bits)
 
     const std::size_t max_n1 = 1000;
     const std::size_t max_n2 = (max_n1 * 10) / 8;
-    Sequence<T> in(max_n1, [bits](std::size_t k) { return T(2 * HashBits(max_n1, bits - 1) ^ 1); });
-    Sequence<T> sub(max_n2, [bits](std::size_t k) { return T(2 * HashBits(max_n1, bits - 1)); });
+    Sequence<T> in(max_n1, [bits](std::size_t) { return T(2 * HashBits(max_n1, bits - 1) ^ 1); });
+    Sequence<T> sub(max_n2, [bits](std::size_t) { return T(2 * HashBits(max_n1, bits - 1)); });
     for (std::size_t n1 = 0; n1 <= max_n1; n1 = n1 <= 16 ? n1 + 1 : size_t(3.1415 * n1))
     {
         std::size_t sub_n[] = {0, 1, 3, n1, (n1 * 10) / 8};
diff --git a/pstl/test/std/algorithms/alg.nonmodifying/find_first_of.pass.cpp b/pstl/test/std/algorithms/alg.nonmodifying/find_first_of.pass.cpp
index f090331..291cf25 100644
--- a/pstl/test/std/algorithms/alg.nonmodifying/find_first_of.pass.cpp
+++ b/pstl/test/std/algorithms/alg.nonmodifying/find_first_of.pass.cpp
@@ -56,8 +56,8 @@ test(Predicate pred)
 
     const std::size_t max_n1 = 1000;
     const std::size_t max_n2 = (max_n1 * 10) / 8;
-    Sequence<T> in1(max_n1, [](std::size_t k) { return T(1); });
-    Sequence<T> in2(max_n2, [](std::size_t k) { return T(0); });
+    Sequence<T> in1(max_n1, [](std::size_t) { return T(1); });
+    Sequence<T> in2(max_n2, [](std::size_t) { return T(0); });
     for (std::size_t n1 = 0; n1 <= max_n1; n1 = n1 <= 16 ? n1 + 1 : size_t(3.1415 * n1))
     {
         std::size_t sub_n[] = {0, 1, n1 / 3, n1, (n1 * 10) / 8};
diff --git a/pstl/test/std/algorithms/alg.nonmodifying/none_of.pass.cpp b/pstl/test/std/algorithms/alg.nonmodifying/none_of.pass.cpp
index 3abf7e3..9ee5936 100644
--- a/pstl/test/std/algorithms/alg.nonmodifying/none_of.pass.cpp
+++ b/pstl/test/std/algorithms/alg.nonmodifying/none_of.pass.cpp
@@ -45,7 +45,7 @@ test(size_t bits)
     {
 
         // Sequence of odd values
-        Sequence<T> in(n, [n, bits](size_t k) { return T(2 * HashBits(n, bits - 1) ^ 1); });
+        Sequence<T> in(n, [n, bits](size_t) { return T(2 * HashBits(n, bits - 1) ^ 1); });
 
         // Even value, or false when T is bool.
         T spike(2 * HashBits(n, bits - 1));
diff --git a/pstl/test/std/algorithms/alg.nonmodifying/nth_element.pass.cpp b/pstl/test/std/algorithms/alg.nonmodifying/nth_element.pass.cpp
index 61fe8d7..0619338 100644
--- a/pstl/test/std/algorithms/alg.nonmodifying/nth_element.pass.cpp
+++ b/pstl/test/std/algorithms/alg.nonmodifying/nth_element.pass.cpp
@@ -111,8 +111,8 @@ struct test_one_policy
     template <typename Policy, typename Iterator1, typename Size, typename Generator1, typename Generator2,
               typename Compare>
     typename std::enable_if<!is_same_iterator_category<Iterator1, std::random_access_iterator_tag>::value, void>::type
-    operator()(Policy&& exec, Iterator1 first1, Iterator1 last1, Iterator1 first2, Iterator1 last2, Size n, Size m,
-               Generator1 generator1, Generator2 generator2, Compare comp)
+    operator()(Policy&&, Iterator1, Iterator1, Iterator1, Iterator1, Size, Size,
+               Generator1, Generator2, Compare)
     {
     }
 };
diff --git a/pstl/test/std/algorithms/alg.nonmodifying/search_n.pass.cpp b/pstl/test/std/algorithms/alg.nonmodifying/search_n.pass.cpp
index ac8a422..d5f0902 100644
--- a/pstl/test/std/algorithms/alg.nonmodifying/search_n.pass.cpp
+++ b/pstl/test/std/algorithms/alg.nonmodifying/search_n.pass.cpp
@@ -67,7 +67,7 @@ test()
             }
             for (auto r : res)
             {
-                Sequence<T> in(n1, [](std::size_t k) { return T(0); });
+                Sequence<T> in(n1, [](std::size_t) { return T(0); });
                 std::size_t i = r, isub = 0;
                 for (; i < n1 & isub < n2; ++i, ++isub)
                     in[i] = value;
diff --git a/pstl/test/std/algorithms/alg.sorting/alg.heap.operations/is_heap.pass.cpp b/pstl/test/std/algorithms/alg.sorting/alg.heap.operations/is_heap.pass.cpp
index bfee4bd..28827be 100644
--- a/pstl/test/std/algorithms/alg.sorting/alg.heap.operations/is_heap.pass.cpp
+++ b/pstl/test/std/algorithms/alg.sorting/alg.heap.operations/is_heap.pass.cpp
@@ -77,13 +77,14 @@ struct test_is_heap
             const Iterator actual = is_heap_until(exec, first, last, pred);
             const auto x = std::distance(first, actual);
             EXPECT_TRUE(expected == actual, "wrong return value from is_heap_until with predicate");
+            EXPECT_EQ(x, y, "both iterators should be the same distance away from 'first'");
         }
     }
 
     // is_heap, is_heap_until works only with random access iterators
     template <typename Policy, typename Iterator, typename Predicate>
     typename std::enable_if<!is_same_iterator_category<Iterator, std::random_access_iterator_tag>::value, void>::type
-    operator()(Policy&& exec, Iterator first, Iterator last, Predicate pred)
+    operator()(Policy&&, Iterator, Iterator, Predicate)
     {
     }
 };
@@ -111,7 +112,7 @@ test_is_heap_by_type(Comp comp)
         invoke_on_all_policies(test_is_heap(), in.cbegin(), in.cend(), comp);
     }
 
-    Sequence<T> in(max_size / 10, [](size_t v) -> T { return T(1); });
+    Sequence<T> in(max_size / 10, [](size_t) -> T { return T(1); });
     invoke_on_all_policies(test_is_heap(), in.begin(), in.end(), comp);
 }
 
diff --git a/pstl/test/std/algorithms/alg.sorting/alg.set.operations/includes.pass.cpp b/pstl/test/std/algorithms/alg.sorting/alg.set.operations/includes.pass.cpp
index 431ce0d..cc9b824 100644
--- a/pstl/test/std/algorithms/alg.sorting/alg.set.operations/includes.pass.cpp
+++ b/pstl/test/std/algorithms/alg.sorting/alg.set.operations/includes.pass.cpp
@@ -55,8 +55,8 @@ struct test_one_policy
 
     template <typename Policy, typename InputIterator1, typename InputIterator2, typename Compare>
     typename std::enable_if<TestUtils::isReverse<InputIterator1>::value, void>::type
-    operator()(Policy&& exec, InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2,
-               Compare comp)
+    operator()(Policy&&, InputIterator1, InputIterator1, InputIterator2, InputIterator2,
+               Compare)
     {
     }
 };
diff --git a/pstl/test/std/algorithms/alg.sorting/alg.set.operations/set.pass.cpp b/pstl/test/std/algorithms/alg.sorting/alg.set.operations/set.pass.cpp
index 27e83a1..8ecb0b1 100644
--- a/pstl/test/std/algorithms/alg.sorting/alg.set.operations/set.pass.cpp
+++ b/pstl/test/std/algorithms/alg.sorting/alg.set.operations/set.pass.cpp
@@ -95,8 +95,8 @@ struct test_one_policy
 
     template <typename Policy, typename InputIterator1, typename InputIterator2, typename Compare>
     typename std::enable_if<TestUtils::isReverse<InputIterator1>::value, void>::type
-    operator()(Policy&& exec, InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2,
-               Compare comp)
+    operator()(Policy&&, InputIterator1, InputIterator1, InputIterator2, InputIterator2,
+               Compare)
     {
     }
 };
diff --git a/pstl/test/std/algorithms/alg.sorting/is_sorted.pass.cpp b/pstl/test/std/algorithms/alg.sorting/is_sorted.pass.cpp
index e7d84f1..19de214 100644
--- a/pstl/test/std/algorithms/alg.sorting/is_sorted.pass.cpp
+++ b/pstl/test/std/algorithms/alg.sorting/is_sorted.pass.cpp
@@ -65,7 +65,7 @@ test_is_sorted_by_type()
     invoke_on_all_policies(test_is_sorted(), in0.cbegin(), in0.cend(), std::is_sorted(in0.begin(), in0.end()));
 
     //non-descending order
-    Sequence<T> in1(9, [](size_t v) -> T { return T(0); });
+    Sequence<T> in1(9, [](size_t) -> T { return T(0); });
     invoke_on_all_policies(test_is_sorted(), in1.begin(), in1.end(), std::is_sorted(in1.begin(), in1.end()));
     invoke_on_all_policies(test_is_sorted(), in1.cbegin(), in1.cend(), std::is_sorted(in1.begin(), in1.end()));
 }
diff --git a/pstl/test/std/algorithms/alg.sorting/partial_sort.pass.cpp b/pstl/test/std/algorithms/alg.sorting/partial_sort.pass.cpp
index 701fee2..827290d 100644
--- a/pstl/test/std/algorithms/alg.sorting/partial_sort.pass.cpp
+++ b/pstl/test/std/algorithms/alg.sorting/partial_sort.pass.cpp
@@ -78,19 +78,18 @@ struct test_brick_partial_sort
             //checking upper bound number of comparisons; O(p*(last-first)log(middle-first)); where p - number of threads;
             if (m1 - first > 1)
             {
-                auto complex = std::ceil(n * std::log(float32_t(m1 - first)));
-#if defined(_PSTL_PAR_BACKEND_TBB)
+#ifdef _DEBUG
+#   if defined(_PSTL_PAR_BACKEND_TBB)
                 auto p = tbb::this_task_arena::max_concurrency();
-#else
+#   else
                 auto p = 1;
-#endif
-
-#ifdef _DEBUG
+#   endif
+                auto complex = std::ceil(n * std::log(float32_t(m1 - first)));
                 if (count_comp > complex * p)
                 {
                     std::cout << "complexity exceeded" << std::endl;
                 }
-#endif
+#endif // _DEBUG
             }
         }
     }
@@ -98,8 +97,8 @@ struct test_brick_partial_sort
     template <typename Policy, typename InputIterator, typename Compare>
     typename std::enable_if<!is_same_iterator_category<InputIterator, std::random_access_iterator_tag>::value,
                             void>::type
-    operator()(Policy&& exec, InputIterator first, InputIterator last, InputIterator exp_first, InputIterator exp_last,
-               Compare compare)
+    operator()(Policy&&, InputIterator, InputIterator, InputIterator, InputIterator,
+               Compare)
     {
     }
 };
diff --git a/pstl/test/std/algorithms/alg.sorting/sort.pass.cpp b/pstl/test/std/algorithms/alg.sorting/sort.pass.cpp
index 2cdb24f..cccc92e 100644
--- a/pstl/test/std/algorithms/alg.sorting/sort.pass.cpp
+++ b/pstl/test/std/algorithms/alg.sorting/sort.pass.cpp
@@ -160,7 +160,7 @@ struct test_sort_with_compare
     typename std::enable_if<is_same_iterator_category<InputIterator, std::random_access_iterator_tag>::value,
                             void>::type
     operator()(Policy&& exec, OutputIterator tmp_first, OutputIterator tmp_last, OutputIterator2 expected_first,
-               OutputIterator2 expected_last, InputIterator first, InputIterator last, Size n, Compare compare)
+               OutputIterator2 expected_last, InputIterator first, InputIterator, Size n, Compare compare)
     {
         using namespace std;
         copy_n(first, n, expected_first);
@@ -187,8 +187,8 @@ struct test_sort_with_compare
               typename Compare>
     typename std::enable_if<!is_same_iterator_category<InputIterator, std::random_access_iterator_tag>::value,
                             void>::type
-    operator()(Policy&& exec, OutputIterator tmp_first, OutputIterator tmp_last, OutputIterator2 expected_first,
-               OutputIterator2 expected_last, InputIterator first, InputIterator last, Size n, Compare compare)
+    operator()(Policy&&, OutputIterator, OutputIterator, OutputIterator2,
+               OutputIterator2, InputIterator, InputIterator, Size, Compare)
     {
     }
 };
diff --git a/pstl/test/std/numerics/numeric.ops/adjacent_difference.pass.cpp b/pstl/test/std/numerics/numeric.ops/adjacent_difference.pass.cpp
index eb3a48e..57133a3 100644
--- a/pstl/test/std/numerics/numeric.ops/adjacent_difference.pass.cpp
+++ b/pstl/test/std/numerics/numeric.ops/adjacent_difference.pass.cpp
@@ -21,19 +21,19 @@ template <typename T>
 struct wrapper
 {
     T t;
-    explicit wrapper(T t_) : t(t_) {}
+    constexpr explicit wrapper(T t_) : t(t_) {}
     template <typename T2>
-    wrapper(const wrapper<T2>& a)
+    constexpr wrapper(const wrapper<T2>& a)
     {
         t = a.t;
     }
     template <typename T2>
-    void
+    constexpr void
     operator=(const wrapper<T2>& a)
     {
         t = a.t;
     }
-    wrapper<T>
+    constexpr wrapper<T>
     operator-(const wrapper<T>& a) const
     {
         return wrapper<T>(t - a.t);
@@ -63,9 +63,11 @@ compute_and_check(Iterator1 first, Iterator1 last, Iterator2 d_first, T, Functio
     if (first == last)
         return true;
 
-    T2 temp(*first);
-    if (!compare(temp, *d_first))
-        return false;
+    {
+        T2 temp(*first);
+        if (!compare(temp, *d_first))
+            return false;
+    }
     Iterator1 second = std::next(first);
 
     ++d_first;
@@ -83,7 +85,7 @@ compute_and_check(Iterator1 first, Iterator1 last, Iterator2 d_first, T, Functio
 // because we can't be sure it will be strictly equal for floating point types
 template <typename Iterator1, typename Iterator2, typename T, typename Function>
 typename std::enable_if<std::is_floating_point<T>::value, bool>::type
-compute_and_check(Iterator1 first, Iterator1 last, Iterator2 d_first, T, Function)
+compute_and_check(Iterator1, Iterator1, Iterator2, T, Function)
 {
     return true;
 }
@@ -134,16 +136,14 @@ template <typename T1, typename T2, typename Pred>
 void
 test(Pred pred)
 {
-    typedef typename Sequence<T2>::iterator iterator_type;
-
     const std::size_t max_len = 100000;
 
-    const T2 value = T2(77);
-    const T1 trash = T1(31);
+    static constexpr T2 value = T2(77);
+    static constexpr T1 trash = T1(31);
 
     Sequence<T1> actual(max_len, [](std::size_t i) { return T1(i); });
 
-    Sequence<T2> data(max_len, [&value](std::size_t i) { return i % 3 == 2 ? T2(i * i) : value; });
+    Sequence<T2> data(max_len, [](std::size_t i) { return i % 3 == 2 ? T2(i * i) : value; });
 
     for (std::size_t len = 0; len < max_len; len = len <= 16 ? len + 1 : std::size_t(3.1415 * len))
     {
diff --git a/pstl/test/std/numerics/numeric.ops/scan.pass.cpp b/pstl/test/std/numerics/numeric.ops/scan.pass.cpp
index 6ae02f1..42090aa 100644
--- a/pstl/test/std/numerics/numeric.ops/scan.pass.cpp
+++ b/pstl/test/std/numerics/numeric.ops/scan.pass.cpp
@@ -98,12 +98,13 @@ struct test_scan_with_plus
     template <typename Policy, typename Iterator1, typename Iterator2, typename Iterator3, typename Size, typename T>
     void
     operator()(Policy&& exec, Iterator1 in_first, Iterator1 in_last, Iterator2 out_first, Iterator2 out_last,
-               Iterator3 expected_first, Iterator3 expected_last, Size n, T init, T trash)
+               Iterator3 expected_first, Iterator3, Size n, T init, T trash)
     {
         using namespace std;
 
         auto orr1 = inclusive ? inclusive_scan_serial(in_first, in_last, expected_first)
                               : exclusive_scan_serial(in_first, in_last, expected_first, init);
+        (void)orr1;
         auto orr = inclusive ? inclusive_scan(exec, in_first, in_last, out_first)
                              : exclusive_scan(exec, in_first, in_last, out_first, init);
         EXPECT_TRUE(out_last == orr,
@@ -136,12 +137,13 @@ struct test_scan_with_binary_op
               typename BinaryOp>
     typename std::enable_if<!TestUtils::isReverse<Iterator1>::value, void>::type
     operator()(Policy&& exec, Iterator1 in_first, Iterator1 in_last, Iterator2 out_first, Iterator2 out_last,
-               Iterator3 expected_first, Iterator3 expected_last, Size n, T init, BinaryOp binary_op, T trash)
+               Iterator3 expected_first, Iterator3, Size n, T init, BinaryOp binary_op, T trash)
     {
         using namespace std;
 
         auto orr1 = inclusive ? inclusive_scan_serial(in_first, in_last, expected_first, binary_op, init)
                               : exclusive_scan_serial(in_first, in_last, expected_first, init, binary_op);
+        (void)orr1;
         auto orr = inclusive ? inclusive_scan(exec, in_first, in_last, out_first, binary_op, init)
                              : exclusive_scan(exec, in_first, in_last, out_first, init, binary_op);
 
@@ -152,8 +154,8 @@ struct test_scan_with_binary_op
     template <typename Policy, typename Iterator1, typename Iterator2, typename Iterator3, typename Size, typename T,
               typename BinaryOp>
     typename std::enable_if<TestUtils::isReverse<Iterator1>::value, void>::type
-    operator()(Policy&& exec, Iterator1 in_first, Iterator1 in_last, Iterator2 out_first, Iterator2 out_last,
-               Iterator3 expected_first, Iterator3 expected_last, Size n, T init, BinaryOp binary_op, T trash)
+    operator()(Policy&&, Iterator1, Iterator1, Iterator2, Iterator2,
+               Iterator3, Iterator3, Size, T, BinaryOp, T)
     {
     }
 };
diff --git a/pstl/test/std/numerics/numeric.ops/transform_reduce.pass.cpp b/pstl/test/std/numerics/numeric.ops/transform_reduce.pass.cpp
index 4065e72..0262bbd 100644
--- a/pstl/test/std/numerics/numeric.ops/transform_reduce.pass.cpp
+++ b/pstl/test/std/numerics/numeric.ops/transform_reduce.pass.cpp
@@ -73,7 +73,7 @@ CheckResults(const T& expected, const T& in)
 // We need to check correctness only for "int" (for example) except cases
 // if we have "floating-point type"-specialization
 void
-CheckResults(const float32_t& expected, const float32_t& in)
+CheckResults(const float32_t&, const float32_t&)
 {
 }
 
@@ -83,7 +83,7 @@ struct test_transform_reduce
     template <typename Policy, typename InputIterator1, typename InputIterator2, typename T, typename BinaryOperation1,
               typename BinaryOperation2, typename UnaryOp>
     void
-    operator()(Policy&& exec, InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2,
+    operator()(Policy&& exec, InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2,
                T init, BinaryOperation1 opB1, BinaryOperation2 opB2, UnaryOp opU)
     {
 
@@ -118,16 +118,16 @@ int32_t
 main()
 {
     test_by_type<int32_t>(42, std::plus<int32_t>(), std::multiplies<int32_t>(), std::negate<int32_t>(),
-                          [](std::size_t a) -> int32_t { return int32_t(rand() % 1000); });
+                          [](std::size_t) -> int32_t { return int32_t(rand() % 1000); });
     test_by_type<int64_t>(0, [](const int64_t& a, const int64_t& b) -> int64_t { return a | b; }, XOR(),
                           [](const int64_t& x) -> int64_t { return x * 2; },
-                          [](std::size_t a) -> int64_t { return int64_t(rand() % 1000); });
+                          [](std::size_t) -> int64_t { return int64_t(rand() % 1000); });
     test_by_type<float32_t>(1.0f, std::multiplies<float32_t>(),
                             [](const float32_t& a, const float32_t& b) -> float32_t { return a + b; },
                             [](const float32_t& x) -> float32_t { return x + 2; },
-                            [](std::size_t a) -> float32_t { return rand() % 1000; });
+                            [](std::size_t) -> float32_t { return rand() % 1000; });
     test_by_type<MyClass>(MyClass(), std::plus<MyClass>(), std::multiplies<MyClass>(), std::negate<MyClass>(),
-                          [](std::size_t a) -> MyClass { return MyClass(rand() % 1000); });
+                          [](std::size_t) -> MyClass { return MyClass(rand() % 1000); });
 
     std::cout << done() << std::endl;
     return 0;
diff --git a/pstl/test/std/numerics/numeric.ops/transform_scan.pass.cpp b/pstl/test/std/numerics/numeric.ops/transform_scan.pass.cpp
index 01920e1..9b9c8a3 100644
--- a/pstl/test/std/numerics/numeric.ops/transform_scan.pass.cpp
+++ b/pstl/test/std/numerics/numeric.ops/transform_scan.pass.cpp
@@ -37,7 +37,7 @@ struct test_transform_scan
               typename T, typename BinaryOp>
     typename std::enable_if<!TestUtils::isReverse<InputIterator>::value, void>::type
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
-               OutputIterator out_last, OutputIterator expected_first, OutputIterator expected_last, Size n,
+               OutputIterator out_last, OutputIterator expected_first, OutputIterator, Size n,
                UnaryOp unary_op, T init, BinaryOp binary_op, T trash)
     {
         using namespace std;
@@ -64,9 +64,9 @@ struct test_transform_scan
     template <typename Policy, typename InputIterator, typename OutputIterator, typename Size, typename UnaryOp,
               typename T, typename BinaryOp>
     typename std::enable_if<TestUtils::isReverse<InputIterator>::value, void>::type
-    operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first,
-               OutputIterator out_last, OutputIterator expected_first, OutputIterator expected_last, Size n,
-               UnaryOp unary_op, T init, BinaryOp binary_op, T trash)
+    operator()(Policy&&, InputIterator, InputIterator, OutputIterator,
+               OutputIterator, OutputIterator, OutputIterator, Size,
+               UnaryOp, T, BinaryOp, T)
     {
     }
 };
@@ -130,6 +130,7 @@ test(UnaryOp unary_op, Out init, BinaryOp binary_op, Out trash)
             inclusive
                 ? transform_inclusive_scan_serial(in.cbegin(), in.cend(), out.fbegin(), unary_op, init, binary_op)
                 : transform_exclusive_scan_serial(in.cbegin(), in.cend(), out.fbegin(), unary_op, init, binary_op);
+        (void)result;
         check_and_reset(expected.begin(), out.begin(), out.size(), trash);
 
         invoke_on_all_policies(test_transform_scan(), in.begin(), in.end(), out.begin(), out.end(), expected.begin(),
diff --git a/pstl/test/std/utilities/memory/specialized.algorithms/uninitialized_copy_move.pass.cpp b/pstl/test/std/utilities/memory/specialized.algorithms/uninitialized_copy_move.pass.cpp
index 979c2e5..be40f69 100644
--- a/pstl/test/std/utilities/memory/specialized.algorithms/uninitialized_copy_move.pass.cpp
+++ b/pstl/test/std/utilities/memory/specialized.algorithms/uninitialized_copy_move.pass.cpp
@@ -91,8 +91,6 @@ struct test_uninitialized_copy_move
     operator()(Policy&& exec, InputIterator first, InputIterator last, OutputIterator out_first, size_t n,
                /*is_trivial<T>=*/std::true_type)
     {
-        typedef typename std::iterator_traits<InputIterator>::value_type T;
-
         std::uninitialized_copy(exec, first, last, out_first);
         EXPECT_TRUE(IsCheckValueCorrectness(first, out_first, n), "wrong uninitialized_copy");
         std::destroy_n(exec, out_first, n);