p122.cpp

来自「《C++编程指南（续编）》的一些程序源代码」· C++ 代码 · 共 25 行

#include <fstream.h>
#include <iomanip.h>

int main(int,char **)
{
	ifstream in("D:\\ifile.txt");
	if(in.eof())
	{
		cout<<"Error opening file ifile.txt\n";
		return -1;
	}
	ofstream out("D:\\ifile.txt");
	if(out.fail())
	{
		cout<<"Error opening output file\n";
		return -1;
	}
	in.tie(&out);

	char szName[80];
	out<<"Enter name : ";
	in>>setw(sizeof szName)>>szName;

	return 0;
}