#include <features.h>
+#if __cplusplus >= 201103L
+#define NULL nullptr
+#elif defined(__cplusplus)
#define NULL 0L
+#else
+#define NULL ((void*)0)
+#endif
#define LC_CTYPE 0
#define LC_NUMERIC 1
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
- || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#define __NEED_locale_t