#include "responses.h" RESPONSE(accepted, 250, "2.6.0 Message accepted."); RESPONSE(internal, 451, "4.3.0 Internal error."); RESPONSE(oom, 451, "4.3.0 Out of memory."); int number_ok(const response* r) { return r->number < 400; } int response_ok(const response* r) { return r == 0 || number_ok(r); }