Name

inflateReset — Resets all state associated with stream..

Library

Libz.lib

Synopsis

#include <zlib.h>
int inflateReset(z_streamp stream);

Return Value

On success, inflateReset() shall return Z_OK. Otherwise it shall return Z_STREAM_ERROR to indicate the error.

Detailed Description

The inflateReset() function shall reset all state associated with stream. All pending output shall be discarded, and the counts of processed bytes (total_in and total_out) shall be reset to zero.

Examples

To reset all the states associated with stream:

#include <stdio.h>
#include <zlib.h> 

void InflateReset( )
{  
    z_stream d_stream; /* decompression stream */
    const char * version;
    d_stream.zalloc = (alloc_func)0;
    d_stream.zfree = (free_func)0;
    d_stream.opaque = (voidpf)0;
    uLong len = (uLong)strlen(hello)+1;
    Byte *compr, *uncompr;
    uLong comprLen = 20*sizeof(int); 
    uLong uncomprLen = comprLen;
    compr    = (Byte*)calloc((uInt)comprLen, 1);
    uncompr  = (Byte*)calloc((uInt)uncomprLen, 1); 
    compress(compr, &comprLen, (const Bytef*)hello, len);
    d_stream.next_in  = compr;
    d_stream.avail_in = 0;
    d_stream.next_out = uncompr;
    version=zlibVersion();
    inflateInit_(&d_stream,(char*)version, sizeof(d_stream));
    inflateReset(&d_stream);
    inflateEnd(&d_stream);   	    	
}

Errors

On error, inflateReset() shall return Z_STREAM_ERROR. The following conditions shall be treated as an error:

The state in stream is inconsistent or inappropriate.
stream is NULL.

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