+#include <_types.h>
+#include <sys/cdefs.h>
+#include <Availability.h>
+#include <sys/_types/_size_t.h>
+#include <sys/_types/_null.h>
+
+/* ANSI-C */
+
+__BEGIN_DECLS
+void *memchr(const void *__s, int __c, size_t __n);
+int memcmp(const void *__s1, const void *__s2, size_t __n);
+void *memcpy(void *__dst, const void *__src, size_t __n);
+void *memmove(void *__dst, const void *__src, size_t __len);
+void *memset(void *__b, int __c, size_t __len);
+#ifndef UNIFDEF_DRIVERKIT
+char *strcat(char *__s1, const char *__s2);
+#endif /* UNIFDEF_DRIVERKIT */
+char *strchr(const char *__s, int __c);
+int strcmp(const char *__s1, const char *__s2);
+int strcoll(const char *__s1, const char *__s2);
+#ifndef UNIFDEF_DRIVERKIT
+char *strcpy(char *__dst, const char *__src);
+#endif /* UNIFDEF_DRIVERKIT */
+size_t strcspn(const char *__s, const char *__charset);
+//Begin-Libc
+#ifndef LIBC_ALIAS_STRERROR
+//End-Libc
+char *strerror(int __errnum) __DARWIN_ALIAS(strerror);
+//Begin-Libc
+#else /* LIBC_ALIAS_STRERROR */
+char *strerror(int __errnum) LIBC_ALIAS(strerror);
+#endif /* !LIBC_ALIAS_STRERROR */
+//End-Libc
+size_t strlen(const char *__s);
+char *strncat(char *__s1, const char *__s2, size_t __n);
+int strncmp(const char *__s1, const char *__s2, size_t __n);
+char *strncpy(char *__dst, const char *__src, size_t __n);
+char *strpbrk(const char *__s, const char *__charset);
+char *strrchr(const char *__s, int __c);
+size_t strspn(const char *__s, const char *__charset);
+char *strstr(const char *__big, const char *__little);
+char *strtok(char *__str, const char *__sep);
+size_t strxfrm(char *__s1, const char *__s2, size_t __n);
+__END_DECLS
+
+
+
+/* Additional functionality provided by:
+ * POSIX.1c-1995,
+ * POSIX.1i-1995,
+ * and the omnibus ISO/IEC 9945-1: 1996
+ */
+
+#if __DARWIN_C_LEVEL >= 199506L
+__BEGIN_DECLS
+char *strtok_r(char *__str, const char *__sep, char **__lasts);
+__END_DECLS
+#endif /* __DARWIN_C_LEVEL >= 199506L */
+
+
+
+/* Additional functionality provided by:
+ * POSIX.1-2001
+ */
+
+#if __DARWIN_C_LEVEL >= 200112L
+__BEGIN_DECLS
+int strerror_r(int __errnum, char *__strerrbuf, size_t __buflen);
+char *strdup(const char *__s1);
+void *memccpy(void *__dst, const void *__src, int __c, size_t __n);
+__END_DECLS
+#endif /* __DARWIN_C_LEVEL >= 200112L */
+
+
+
+/* Additional functionality provided by:
+ * POSIX.1-2008
+ */
+
+#if __DARWIN_C_LEVEL >= 200809L
+__BEGIN_DECLS
+#ifndef UNIFDEF_DRIVERKIT
+char *stpcpy(char *__dst, const char *__src);
+#endif /* UNIFDEF_DRIVERKIT */
+char *stpncpy(char *__dst, const char *__src, size_t __n) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
+char *strndup(const char *__s1, size_t __n) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
+size_t strnlen(const char *__s1, size_t __n) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
+char *strsignal(int __sig);
+__END_DECLS
+#endif /* __DARWIN_C_LEVEL >= 200809L */
+
+/* C11 Annex K */
+
+#if defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1
+#include <sys/_types/_rsize_t.h>
+#include <sys/_types/_errno_t.h>
+
+__BEGIN_DECLS
+errno_t memset_s(void *__s, rsize_t __smax, int __c, rsize_t __n) __OSX_AVAILABLE_STARTING(__MAC_10_9, __IPHONE_7_0);
+__END_DECLS