PS_F_NOCOPY
ps->ps_flags |= PS_F_NOCOPY;
if (ops->ps_flags & PS_F_NOCOPY)
return ((ps->ps_flags & PS_F_NOCOPY) == 0);
if (dst->ps_flags & PS_F_NOCOPY)
if (dst->ps_flags & PS_F_NOCOPY)
if ((ps->ps_flags & PS_F_NOCOPY) == 0 && ps->ps_mutable != NULL)