\r
_PDCLIB_BEGIN_EXTERN_C\r
#define _PDCLIB_ONCE_FLAG_INIT 0\r
-#define _PDCLIB_ONCE_FLAG_DONE 1\r
+#define _PDCLIB_ONCE_FLAG_IS_DONE(_f) (*(_f) == 1)\r
typedef char _PDCLIB_once_flag;\r
\r
void _PDCLIB_call_once(_PDCLIB_once_flag *flag, void (*func)(void));\r