1 files changed, 14 insertions, 0 deletions
diff --git a/libcxx/test/std/algorithms/alg.modifying.operations/alg.swap/iter_swap.pass.cpp b/libcxx/test/std/algorithms/alg.modifying.operations/alg.swap/iter_swap.pass.cpp
index 2fbd905e5be..b3a9f5fc259 100644
--- a/libcxx/test/std/algorithms/alg.modifying.operations/alg.swap/iter_swap.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.modifying.operations/alg.swap/iter_swap.pass.cpp
@@ -18,6 +18,16 @@
 
 #include "test_macros.h"
 
+#if TEST_STD_VER > 17
+constexpr bool test_swap_constexpr()
+{
+    int i = 1;
+    int j = 2;
+    std::iter_swap(&i, &j);
+    return i == 2 && j == 1;
+}
+#endif // TEST_STD_VER > 17
+
 int main(int, char**)
 {
     int i = 1;
@@ -26,5 +36,9 @@ int main(int, char**)
     assert(i == 2);
     assert(j == 1);
 
+#if TEST_STD_VER > 17
+    static_assert(test_swap_constexpr());
+#endif // TEST_STD_VER > 17
+
   return 0;
 }