getach
if (((i = getach()) == 0) || ((j = getach()) == 0))
i = getach();
if ((i = getach()) == 0)
if ((i = cbits(ii = getach())) == '+')
if ((*s++ = getach()) == 0 || (*s++ = getach()) == 0)
if ((*s++ = getach()) == 0 || (*s++ = getach()) == 0)
c = getach();