156                 last = have ? (have--, (int)(*next++)) : -1)
203     int last;                   /* last byte read by NEXT(), or -1 if EOF */  in lunpipe()  local
227     if (last == -1)  in lunpipe()
251     final = prev = (unsigned)last;          /* low 8 bits of code */  in lunpipe()
254     if (last & 1) {                         /* code must be < 256 */  in lunpipe()
258     rem = (unsigned)last >> 1;              /* remaining 7 bits */  in lunpipe()
287         code += (unsigned)last << left;     /* middle (or high) bits of code */  in lunpipe()
293             code += (unsigned)last << left; /* high bits of code */  in lunpipe()
299         rem = (unsigned)last >> (8 - left); /* unused bits from last byte */  in lunpipe()
385     int ret, first, last;  in gunpipe()  local
406         if (last != 31 || (NEXT() != 139 && last != 157)) {  in gunpipe()
414         if (last == 157) {  in gunpipe()
422             if (last == -1) break;  in gunpipe()
434         if (last == -1) break;  in gunpipe()
443             if (last == -1) break;  in gunpipe()
450             if (last == -1) break;  in gunpipe()
455             while (NEXT() != 0 && last != -1)  in gunpipe()
458             while (NEXT() != 0 && last != -1)  in gunpipe()
464         if (last == -1) break;  in gunpipe()
488             if (last != -1) {  in gunpipe()
499             if (last != -1) {  in gunpipe()