6.11.8.cpp

#include<iostream>
#include<fstream>
using namespace std;

const int SIZE = 100;

int main()
{
	char filename[SIZE];
	ifstream inFile;
	cout << "Enter the file name: ";
	cin.getline(filename, SIZE);
	inFile.open(filename);
	int cnt = 0;
	if (!inFile.is_open())
	{
		cout << "couldn't open file." << endl;
		exit(1);
	}
	char value;
	inFile >> value;
	while (inFile.good())
	{
		cnt++;
		inFile >> value;
		inFile.get();
	}
	if (inFile.eof())
		cout << "End of file reached.\n";
	else if (inFile.fail())
		cout << "Input terminated for unknown reason.\n";
	if (cnt == 0)
		cout << "No data processed.";
	else
	{
		cout << "there are " << cnt << " characters." << endl;
	}
	inFile.close();
	return 0;
}