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/* Some definitions for faster bit-level I/O */
extern unsigned long getbuf; /* Bit I/O buffers */
extern u_short putbuf;
extern uchar bitlen; /* Number of bits actually in `???buf' */
extern uchar crpt_flag; /* 1 == EOF was read when melting */
extern uchar __; /* temporary variable for GetBit/Byte */
extern void EncodeEnd(), Putcode(), crpt_message();
#define bits(x) ((int)sizeof(x)*8)
#define BYSH (bits(getbuf)-8)
#define BISH (bits(getbuf)-1)
#define GetByte() (bitlen >= 8 ? (__ = getbuf >> BYSH, bitlen -= 8,\
getbuf <<= 8, __) : (getbuf |= (unsigned long) \
(getchar() & 0xFF) << (BYSH - bitlen), __ = getbuf\
>> BYSH, getbuf <<= 8, __))
#define GetBit() (bitlen ? (__ = getbuf >> BISH, bitlen--, \
getbuf <<= 1, __) : (getbuf = __ = getchar(), \
getbuf <<= BYSH + 1, bitlen = 7, __ >> 7))
#define InitIO() { crpt_flag = bitlen = 0; putbuf = 0; getbuf = 0; }
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.