linux zlib（文件压缩）

ubuntu下安装zlib

sodu apt-get install zlib1g-dev

编译的时候需要加上 -lz

 

.cpp

压缩程序

#include
#include
#include
#include

#define MaxBufferSize 1024*10

int main()

{
  int i;
  FILE* File_src;
  FILE* File_tmp;
  FILE* File_dest;

  unsigned long len_src;
  unsigned long len_tmp;
  unsigned long len_dest;

  unsigned char *buffer_src = new unsigned char[MaxBufferSize];
  unsigned char *buffer_tmp = new unsigned char[MaxBufferSize];
  unsigned char *buffer_dest = new unsigned char[MaxBufferSize];

  File_src=fopen("src.jpg","r");
  len_src =fread(buffer_src,sizeof(char),MaxBufferSize-1,File_src);
  compress(buffer_tmp,&len_tmp,buffer_src,len_src);
  File_tmp =fopen("tmp.jpg","w");
  fwrite(buffer_tmp,sizeof(char),len_tmp,File_tmp);
  uncompress(buffer_dest,&len_dest,buffer_tmp,len_tmp);
  File_tmp=fopen("tmp.jpg","r");
  File_dest=fopen("dest.jpg","w");
  fwrite(buffer_dest,sizeof(char),len_dest,File_dest);
  printf("OK\n");
}