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-rw-r--r--libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/c_compat.cc6
1 files changed, 6 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/c_compat.cc b/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/c_compat.cc
index 6dd4f5b00ca..edf19960cbb 100644
--- a/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/c_compat.cc
+++ b/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/c_compat.cc
@@ -3,6 +3,12 @@
#include <stdatomic.h>
+#ifndef __cpp_lib_stdatomic_h
+# error "Feature test macro for stdatomic.h is missing in <stdatomic.h>"
+#elif __cpp_lib_stdatomic_h != 202011L
+# error "Feature test macro for stdatomic.h has wrong value in <stdatomic.h>"
+#endif
+
#ifndef ATOMIC_BOOL_LOCK_FREE
#error ATOMIC_BOOL_LOCK_FREE is not defined in <stdatomic.h>
#endif