#pragma GCC system_header
#include <bits/atomic_base.h>
-#ifdef __cpp_lib_atomic_wait
+#if __cpp_lib_atomic_wait
#include <bits/atomic_timed_wait.h>
#include <ext/numeric_traits.h>
#ifdef _GLIBCXX_HAS_GTHREADS
# define __cpp_lib_jthread 201911L
#endif
-#if __cpp_lib_atomic_wait
+#if __cpp_lib_atomic_wait
# define __cpp_lib_latch 201907L
#endif
#define __cpp_lib_list_remove_return_type 201806L
#if __cpp_lib_concepts
# define __cpp_lib_ranges 201911L
#endif
-#if __cpp_lib_atomic_wait
+#if __cpp_lib_atomic_wait
# define __cpp_lib_semaphore 201907L
#endif
#define __cpp_lib_shift 201806L