File mode Detecting End-of-File

 

File Modes

Files can be opened in various modes using flags (e.g., ios::in, ios::out, etc.):

Mode	Description
ios::in	Open for input (reading).
ios::out	Open for output (writing).
ios::app	Append to the end of the file.
ios::trunc	Truncate (delete) the contents of the file.
ios::binary	Open in binary mode.

Example:

 Detecting End-of-File (EOF)

The eof() function is used to check if the end of the file has been reached during a read operation.

Example:

#include <iostream>

#include <fstream>

using namespace std;

int main() 

{

std::ifstream file("example.txt");

std::string line;

while (!file.eof()) {

    std::getline(file, line);

    std::cout << line << std::endl;

}

file.close();

    return 0;

}

Output: