Guard C++23

Author: ldionne

libcxx/test/benchmarks/algorithms/modifying/rotate.bench.cpp

@@ -72,9 +72,11 @@ int main(int argc, char** argv) {
     bm.operator()<std::vector<bool>>("std::rotate(vector<bool>) (by 1/3)", std_rotate, 0.33);
     bm.operator()<std::vector<bool>>("std::rotate(vector<bool>) (by 1/2)", std_rotate, 0.50);
 
+#if TEST_STD_VER >= 23 // vector<bool>::iterator is not std::permutable before C++23
     bm.operator()<std::vector<bool>>("rng::rotate(vector<bool>) (by 1/4)", std::ranges::rotate, 0.25);
     bm.operator()<std::vector<bool>>("rng::rotate(vector<bool>) (by 1/3)", std::ranges::rotate, 0.33);
     bm.operator()<std::vector<bool>>("rng::rotate(vector<bool>) (by 1/2)", std::ranges::rotate, 0.50);
+#endif
   }
 
   // Benchmark {std,ranges}::rotate where we rotate a single element from the beginning to the end of the range.
@@ -108,7 +110,9 @@ int main(int argc, char** argv) {
     bm.operator()<std::list<int>>("rng::rotate(list<int>) (1 element forward)", std::ranges::rotate);
 
     bm.operator()<std::vector<bool>>("std::rotate(vector<bool>) (1 element forward)", std_rotate);
+#if TEST_STD_VER >= 23 // vector<bool>::iterator is not std::permutable before C++23
     bm.operator()<std::vector<bool>>("rng::rotate(vector<bool>) (1 element forward)", std::ranges::rotate);
+#endif
   }
 
   // Benchmark {std,ranges}::rotate where we rotate a single element from the end to the beginning of the range.
@@ -142,7 +146,9 @@ int main(int argc, char** argv) {
     bm.operator()<std::list<int>>("rng::rotate(list<int>) (1 element backward)", std::ranges::rotate);
 
     bm.operator()<std::vector<bool>>("std::rotate(vector<bool>) (1 element backward)", std_rotate);
+#if TEST_STD_VER >= 23 // vector<bool>::iterator is not std::permutable before C++23
     bm.operator()<std::vector<bool>>("rng::rotate(vector<bool>) (1 element backward)", std::ranges::rotate);
+#endif
   }
 
   benchmark::Initialize(&argc, argv);