网络上找到的好多方法在解压缩字符串的时候会丢失字符,这里是解决方法:
http://stackoverflow.com/questions/21186535/compressing-decompressing-char-array-using-zlib-some-characters-missing
基于此,笔者修改了一下,由于是初学者,只按照编译器不报错的原则修改了一下,能运行
打开vc++6.0新建控制台程序程序,配置好zdll.lib,把zlib1.dll放置到合适的位置
主程序main.cpp如下
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "zlib.h"int main()
{
const char *istream = "some foo汉字";
uLong srcLen = strlen(istream)+; // +1 for the trailing `\0`
uLong destLen = compressBound(srcLen); // this is how you should estimate size
// needed for the buffer
unsigned char* ostream = (unsigned char*)malloc(destLen);
int res = compress(ostream, &destLen, (const unsigned char *)istream, srcLen);
// destLen is now the size of actuall buffer needed for compression
// you don't want to uncompress whole buffer later, just the used part
if(res == Z_BUF_ERROR){
printf("Buffer was too small!\n");
return ;
}
if(res == Z_MEM_ERROR){
printf("Not enough memory for compression!\n");
return ;
} unsigned char *i2stream = ostream;
char* o2stream = (char *)malloc(srcLen);
uLong destLen2 = destLen; //destLen is the actual size of the compressed buffer
int des = uncompress((unsigned char *)o2stream, &srcLen, i2stream, destLen2);
printf("%s\n", o2stream);
return ;
}