inftrees.h

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typedef struct {
    unsigned char op;           
    unsigned char bits;         
    unsigned short val;         
} code;
 
/* op values as set by inflate_table():
    00000000 - literal
    0000tttt - table link, tttt != 0 is the number of table index bits
    0001eeee - length or distance, eeee is the number of extra bits
    01100000 - end of block
    01000000 - invalid code
 */
 
#define ENOUGH_LENS 852
#define ENOUGH_DISTS 592
#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
 
typedef enum {
    CODES,
    LENS,
    DISTS
} codetype;
 
int ZLIB_INTERNAL inflate_table (codetype type, unsigned short* lens,
                             unsigned codes, code** table,
                             unsigned* bits, unsigned short* work);