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-rw-r--r--libcxx/test/std/language.support/support.dynamic/destroying_delete_t.pass.cpp17
1 files changed, 13 insertions, 4 deletions
diff --git a/libcxx/test/std/language.support/support.dynamic/destroying_delete_t.pass.cpp b/libcxx/test/std/language.support/support.dynamic/destroying_delete_t.pass.cpp
index 834222c06bf..fa4e77c71f7 100644
--- a/libcxx/test/std/language.support/support.dynamic/destroying_delete_t.pass.cpp
+++ b/libcxx/test/std/language.support/support.dynamic/destroying_delete_t.pass.cpp
@@ -52,10 +52,19 @@ void A::operator delete(A* a, std::destroying_delete_t) {
::operator delete(a);
}
-#ifndef __cpp_lib_destroying_delete
-#error "Expected __cpp_lib_destroying_delete to be defined"
-#elif __cpp_lib_destroying_delete < 201806L
-#error "Unexpected value of __cpp_lib_destroying_delete"
+// Only test the definition of the library feature-test macro when the compiler
+// supports the feature -- otherwise we don't define the library feature-test
+// macro.
+#if defined(__cpp_impl_destroying_delete)
+# if !defined(__cpp_lib_destroying_delete)
+# error "Expected __cpp_lib_destroying_delete to be defined"
+# elif __cpp_lib_destroying_delete < 201806L
+# error "Unexpected value of __cpp_lib_destroying_delete"
+# endif
+#else
+# if defined(__cpp_lib_destroying_delete)
+# error "The library feature-test macro for destroying delete shouldn't be defined when the compiler doesn't support the language feature"
+# endif
#endif
int main() {
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