#ifndef WIN32_LEAN_AND_MEAN #define WIN32_LEAN_AND_MEAN #endif #undef __CRT__NO_INLINE #define __CRT__NO_INLINE #include #include void IN6_SET_ADDR_LOOPBACK(struct in6_addr *a) { *a = (struct in6_addr){0}; a->s6_bytes[15] = 1; }