C++高效编程：内存与性能优化

          1: #include <iostream>

         2: #include <fstream>

         3: using namespace std;    

         4:  

         5: int main(){

         6: ofstream out;

         7: out.open("i://t.txt",ios::app);

         8: streambuf *backup = clog.rdbuf();

         9: clog.rdbuf(out.rdbuf());

        10: clog<<"my log..."<<endl;

        11: out.close();

        12: clog.rdbuf(backup);//必须重定向回来

        13:  

        14: }

posted on 2011-10-06 00:01 yangyh 阅读(1306) 评论(0) 收藏举报