reduction warning: bitwise negation of a boolean expression always evaluates to 'true'; did you mean logical negation?

[AlexeySachkov]

SYCL-CTS/tests/reduction/identity_helper.h

Lines 47 to 55 in 9691bc0

	/** bit_and */
	template <
	typename AccumulatorT, typename OperatorT,
	std::enable_if_t<std::is_same_v<OperatorT, sycl::bit_and<AccumulatorT>> &&
	std::is_integral_v<AccumulatorT>,
	bool> = true>
	AccumulatorT get_identity() {
	return ~AccumulatorT{};
	}

Build log:

[952/1195] Building CXX object tests/reduction/CMakeFiles/test_reduction_objects.dir/reducer_api_core.cpp.o
In file included from ../tests/reduction/reducer_api_core.cpp:24:
In file included from ../tests/reduction/reducer_api.h:27:
../tests/reduction/identity_helper.h:54:10: warning: bitwise negation of a boolean expression always evaluates to 'true'; did you mean logical negation? [-Wbool-operation]
   54 |   return ~AccumulatorT{};
      |          ^~~~~~~~~~~~~~~
      |          !
../tests/reduction/reducer_api.h:253:29: note: in instantiation of function template specialization 'get_identity<bool, std::bit_and<bool>, true>' requested here
  253 |     AccumulatorT expected = get_identity<AccumulatorT, OperatorT>();
      |                             ^
../tests/reduction/../common/type_coverage.h:404:5: note: in instantiation of member function 'check_reducer_identity_operator<std::bit_and<bool>, bool>::operator()' requested here
  404 |   ((action<types, actionArgsT...>{}(std::forward<argsT>(args)...,
      |     ^
../tests/reduction/reducer_api.h:271:5: note: in instantiation of function template specialization 'for_all_types<check_reducer_identity_operator, bool, std::plus<bool>, std::multiplies<bool>, std::bit_and<bool>, std::bit_or<bool>,
 std::bit_xor<bool>, sycl::logical_and<bool>, sycl::logical_or<bool>, sycl::minimum<bool>, sycl::maximum<bool>, sycl::queue &>' requested here
  271 |     for_all_types<check_reducer_identity_operator, AccumulatorT>(op_types,
      |     ^
../tests/reduction/reducer_api_core.cpp:79:33: note: in instantiation of member function 'check_reducer_identity<bool>::operator()' requested here
   79 |   check_reducer_identity<bool>{}(queue, "bool");
      |                                 ^
../tests/reduction/../common/disabled_for_test_case.h:42:3: note: expanded from macro 'DISABLED_FOR_TEST_CASE'
   42 |   INTERNAL_CTS_DISABLED_FOR_TEST_CASE(__VA_ARGS__)
      |   ^
../tests/reduction/../common/disabled_for_test_case.h:130:40: note: expanded from macro 'INTERNAL_CTS_DISABLED_FOR_TEST_CASE'
  130 |   INTERNAL_CTS_MAYBE_DISABLE_TEST_CASE(INTERNAL_CTS_ENABLED_TEST_CASE, \
      |                                        ^
1 warning generated.