zlib解压http deflate demo

 
#include <stdio.h>
#include <string.h>  // for strlen
#include <assert.h>
#include "zlib.h"
 
#include <iostream>
#include <fstream>
#include <sstream>
 
using std::cout; using std::cerr;
using std::endl; using std::string;
using std::ifstream; using std::ostringstream;

// adapted from: http://stackoverflow.com/questions/7540259/deflate-and-inflate-zlib-h-in-c
int main(int argc, char* argv[])
{
    char a[50] = "Hello, world!";
    char b[50];
    char c[50];

    uLong ucompSize = strlen(a)+1; // "Hello, world!" + NULL delimiter.
    uLong compSize = compressBound(ucompSize);

    // Deflate
    compress((Bytef *)b, &compSize, (Bytef *)a, ucompSize);
    printf("compress data is %s",c);
    
    // Inflate
    uncompress((Bytef *)c, &ucompSize, (Bytef *)b, compSize);
    printf("uncompress data is %s",c);
    return 0;
}