return 1;
return 0;
feholdexcept (fenv_t *envp){  fenv_union_t u;  /* Get the current state.  */  u.fenv = *envp = fegetenv_register ();  /* Clear everything except for the rounding mode and non-IEEE arithmetic     flag.  */  u.l[1] = u.l[1] & 7;  /* Put the new state in effect.  */  fesetenv_register (u.fenv);  return 1;}