adler32.c File Reference

#include "zutil.h"

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Macros
#define	local   static
#define	BASE   65521UL /* largest prime smaller than 65536 */
#define	NMAX   5552
#define	DO1(buf, i)   {adler += (buf)[i]; sum2 += adler;}
#define	DO2(buf, i)   DO1(buf,i); DO1(buf,i+1);
#define	DO4(buf, i)   DO2(buf,i); DO2(buf,i+2);
#define	DO8(buf, i)   DO4(buf,i); DO4(buf,i+4);
#define	DO16(buf)    DO8(buf,0); DO8(buf,8);
#define	MOD(a)   a %= BASE
#define	MOD4(a)   a %= BASE

Functions
local uLong	adler32_combine_ (uLong adler1, uLong adler2, z_off64_t len2)
uLong ZEXPORT	adler32 (uLong adler, const Bytef *buf, uInt len)
uLong ZEXPORT	adler32_combine (uLong adler1, uLong adler2, z_off_t len2)
uLong ZEXPORT	adler32_combine64 (uLong adler1, uLong adler2, z_off64_t len2)

Macro Definition Documentation

#define BASE   65521UL /* largest prime smaller than 65536 */

#define DO1	(		buf,
			i
	)		{adler += (buf)[i]; sum2 += adler;}

#define DO16

(

buf

)

DO8(buf,0); DO8(buf,8);

#define DO2	(		buf,
			i
	)		DO1(buf,i); DO1(buf,i+1);

#define DO4	(		buf,
			i
	)		DO2(buf,i); DO2(buf,i+2);

#define DO8	(		buf,
			i
	)		DO4(buf,i); DO4(buf,i+4);

#define local   static

#define MOD

(

a

)

a %= BASE

#define MOD4

(

a

)

a %= BASE

#define NMAX   5552

Function Documentation

uLong ZEXPORT adler32	(	uLong	adler,
		const Bytef *	buf,
		uInt	len
	)

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uLong ZEXPORT adler32_combine	(	uLong	adler1,
		uLong	adler2,
		z_off_t	len2
	)

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uLong ZEXPORT adler32_combine64	(	uLong	adler1,
		uLong	adler2,
		z_off64_t	len2
	)

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local uLong adler32_combine_	(	uLong	adler1,
		uLong	adler2,
		z_off64_t	len2
	)

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