apps/ccam/gzprintf.c

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/* example.c -- usage example of the zlib compression library
 * Copyright (C) 1995-2002 Jean-loup Gailly.
 * For conditions of distribution and use, see copyright notice in zlib.h 
 */

/* @(#) $Id: gzprintf.c,v 1.1.1.1 2007/06/25 18:20:19 elphel Exp $ */

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

#include <string.h>
#include <stdlib.h>


#define CHECK_ERR(err, msg) { \
    if (err != Z_OK) { \
        fprintf(stderr, "%s error: %d\n", msg, err); \
        exit(1); \
    } \
}


int  main               (int argc, char *argv[]);

/* ===========================================================================
 * Test read/write of .gz files
 */

int main(argc, argv)
    int argc;
    char *argv[];
{
        int printPos,printPosInc,i;
    gzFile file;


   printf( "The file handle for stdout is %d\n", _fileno( stdout ) );


//    file = gzopen("test.wrz", "wb");
    file = gzdopen(_fileno( stdout ), "wb");
    if (file == NULL) {
        fprintf(stderr, "gzdopen error\n");
        exit(1);
    }
        gzprintf(file,"%s%n", "-----",&printPos);

    for (i=0;i<10;i++) {
                gzprintf(file," %d%n",printPos,&printPosInc);
                printPos+=printPosInc;
        }

    gzclose(file);

    exit(0);
    return 0; /* to avoid warning */
}

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