How does does ifstream eof() work?
- by Chan
Hello everyone,
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cctype>
#include <fstream>
using namespace std;
int main() {
fstream inf( "ex.txt", ios::in );
while( !inf.eof() ) {
std::cout << inf.get() << "\n";
}
inf.close();
inf.clear();
inf.open( "ex.txt", ios::in );
char c;
while( inf >> c ) {
std::cout << c << "\n";
}
return 0;
}
I'm really confused about eof() function. Suppose my ex.txt's content is:
abc
It always reads an extra character and show -1. when reading using eof()? But the inf c gave the correct output which was 'abc'? Can anyone help me explain this?
Best regards,
Chan Nguyen
