__OSX_AVAILABLE(10.12.1) __IOS_AVAILABLE(10.1)
__TVOS_AVAILABLE(10.0.1) __WATCHOS_AVAILABLE(3.1)
int timingsafe_bcmp(const void *__b1, const void *__b2, size_t __len);
+
+__OSX_AVAILABLE(10.16) __IOS_AVAILABLE(14.0)
+__TVOS_AVAILABLE(14.0) __WATCHOS_AVAILABLE(7.0)
+int strsignal_r(int __sig, char *__strsignalbuf, size_t __buflen);
__END_DECLS
/* Some functions historically defined in string.h were placed in strings.h