dist/zlib/inflate.c

30  * - Add comments on state->bits assertion in inffast.c
136     state->bits = 0;
181     /* set number of window bits, free window if different */
247 int ZEXPORT inflatePrime(strm, bits, value)
249 int bits;
256     if (bits < 0) {
258         state->bits = 0;
261     if (bits > 16 || state->bits + (uInt)bits > 32) return Z_STREAM_ERROR;
262     value &= (1L << bits) - 1;
263     state->hold += (unsigned)value << state->bits;
264     state->bits += (uInt)bits;
288         unsigned sym, bits;
299         bits = 9;
300         inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work);
306         bits = 5;
307         inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work);
363                state.lencode[low].bits, state.lencode[low].val);
373         printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits,
483         bits = state->bits; \
494         state->bits = bits; \
501         bits = 0; \
510         hold += (unsigned long)(*next++) << bits; \
511         bits += 8; \
514 /* Assure that there are at least n bits in the bit accumulator.  If there is
518         while (bits < (unsigned)(n)) \
522 /* Return the low n bits of the bit accumulator (n < 16) */
526 /* Remove n bits from the bit accumulator */
530         bits -= (unsigned)(n); \
533 /* Remove zero to seven bits as needed to go to a byte boundary */
536         hold >>= bits & 7; \
537         bits -= bits & 7; \
560    the requested bits are not available.  The typical use of the BITS macros
568    input left to load n bits into the accumulator, or it continues.  BITS(n)
569    gives the low n bits in the accumulator.  When done, DROPBITS(n) drops
570    the low n bits off the accumulator.  INITBITS() clears the accumulator
571    and sets the number of available bits to zero.  BYTEBITS() discards just
572    enough bits to put the accumulator on a byte boundary.  After BYTEBITS()
631     unsigned bits;              /* bits in bit buffer */
637     unsigned len;               /* length to copy for repeats, bits to drop */
963                     if ((unsigned)(here.bits) <= bits) break;
967                     DROPBITS(here.bits);
972                         NEEDBITS(here.bits + 2);
973                         DROPBITS(here.bits);
984                         NEEDBITS(here.bits + 3);
985                         DROPBITS(here.bits);
991                         NEEDBITS(here.bits + 7);
992                         DROPBITS(here.bits);
1056                 if ((unsigned)(here.bits) <= bits) break;
1063                             (BITS(last.bits + last.op) >> last.bits)];
1064                     if ((unsigned)(last.bits + here.bits) <= bits) break;
1067                 DROPBITS(last.bits);
1068                 state->back += last.bits;
1070             DROPBITS(here.bits);
1071             state->back += here.bits;
1106                 if ((unsigned)(here.bits) <= bits) break;
1113                             (BITS(last.bits + last.op) >> last.bits)];
1114                     if ((unsigned)(last.bits + here.bits) <= bits) break;
1117                 DROPBITS(last.bits);
1118                 state->back += last.bits;
1120             DROPBITS(here.bits);
1121             state->back += here.bits;
1269     strm->data_type = (int)state->bits + (state->last ? 64 : 0) +
1411     if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR;
1416         state->hold <<= state->bits & 7;
1417         state->bits -= state->bits & 7;
1419         while (state->bits >= 8) {
1422             state->bits -= 8;
1458     return state->mode == STORED && state->bits == 0;