c - 使用压缩时出现缓冲区错误

Question

按照here中的示例进行操作后，我似乎失败了。

#define CHECK_ERR(retcode, msg) { \                                             
  if (retcode != Z_OK) { \                                                      
    fprintf(stderr, "%s on using %s\r\n", zError(retcode), msg); \              
    exit(1); \                                                                  
  } \                                                                           
}

int main(int argc, char* argv[]) { 
  Bytef a[1000];                                                                
  Bytef b[1000];                                                                
  Bytef c[1000];                                                                
  uLongf compressed_size;                                                       
  uLongf uncompressed_size;                                                     
  int retcode;                                                                  
  size_t i;                                                                     

  uncompressed_size = 800;                                                      
  for (i = 0; i < uncompressed_size; i++) {                                     
    a[i] = ((uint8_t)i) & 255;                                                  
  }                                                                             

  retcode = compress(b, &compressed_size, a, uncompressed_size);                
  CHECK_ERR(retcode, "compress");                                               
  retcode = uncompress(c, &uncompressed_size, b, compressed_size);              
  CHECK_ERR(retcode, "uncompress"); 
}

我收到缓冲区错误:Z_BUF_ERROR (-5)

程序返回:

使用压缩时出现缓冲区错误

Answer 1

我没有收到任何错误。我必须在顶部添加:

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