Dr. Dobb's Journal January 1997
class ZlibEngine : public z_stream {
public : ZlibEngine();
int compress( const char *input,
const char *output,
int level = 6 );
int decompress( const char *input,
const char *output );
void set_abort_flag( int i ){ m_AbortFlag = i; }
protected :
int percent();
int load_input();
int flush_output();
protected :
virtual void progress( int percent ){};
virtual void status( char *message ){};
protected :
int m_AbortFlag;
FILE *fin;
FILE *fout;
long length;
int err;
enum { input_length = 4096 };
unsigned char input_buffer[ input_length ];
enum { output_length = 4096 };
unsigned char output_buffer[ output_length ];
};