fstream--文本数据迁移

// ifile_ofile_test.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

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

#include <iostream>
#include <fstream>
#include <string>

int move_data(const std::string _ifilename, const std::string _ofilename)
{
    char cVal[8] = {0};
    std::string line;
    try
    {
        std::ifstream ifile(_ifilename.c_str(),std::ios::in);//只读方式读取文件
        std::ofstream ofile(_ofilename.c_str(), std::ios::out|std::ios::app);//输出到新文件中

        if (ifile.fail())
        {
            std::cout<<"Unable to init ifstream file"<<std::endl;
        }
        if (ofile.fail())
        {
            std::cout<<"Unable to init ofstream file"<<std::endl;
        }
        else if (ifile.is_open()&&ofile.is_open())
        {
            /*读数据*/
            while(getline(ifile, line))
            {
                ofile << line<<std::endl;
            }
            ifile.close();
            ofile.close();
            return 0;
        }
        else
        {
            std::cout<<"error"<<std::endl;
        }
    }
    catch (std::exception& exc)
    {
        std::cout<<"error:"<<exc.what()<<std::endl;
    }

    return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
    std::string ifilename="http://www.cnblogs.com/infile.txt";
    std::string ofilename="http://www.cnblogs.com/outfile.txt";
    if(move_data(ifilename,ofilename)==0)
    {
        std::cout<<"迁移数据成功"<<std::endl;
    }
    return 0;
}