SCM_CLASS_SOCKADDR   54 ext/net/addr.c     return Scm_SubtypeP(Scm_ClassOf(obj), SCM_CLASS_SOCKADDR);
SCM_CLASS_SOCKADDR   87 ext/net/gauche/net.h #define SCM_SOCKADDRP(obj)    SCM_XTYPEP(obj, SCM_CLASS_SOCKADDR)