ios eof() function in C++ with Examples

The eof() method of ios class in C++ is used to check if the stream is has raised any EOF (End Of File) error. It means that this function will check if this stream has its eofbit set.

Syntax:

bool eof() const;

Parameters: This method does not accept any parameter.



Return Value: This method returns true if the stream has eofbit set, else false.

Example 1:

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// C++ code to demonstrate
// the working of eof() function
  
#include <bits/stdc++.h>
using namespace std;
  
int main()
{
  
    // Stream
    stringstream ss;
  
    // Using eof() function
    bool isEOF = ss.eof();
  
    // print result
    cout << "is stream eof: "
         << isEOF << endl;
  
    return 0;
}

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Output:

is stream eof: 0

Example 2:

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// C++ code to demonstrate
// the working of eof() function
  
#include <bits/stdc++.h>
using namespace std;
  
int main()
{
  
    // Stream
    stringstream ss;
    ss.clear(ss.eofbit);
  
    // Using eof() function
    bool isEOF = ss.eof();
  
    // print result
    cout << "is stream eof: "
         << isEOF << endl;
  
    return 0;
}

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Output:

is stream eof: 1

Reference: hhttp://www.cplusplus.com/reference/ios/ios/eof/



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