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C++ Read File

In C++, you can read a file using either ifstream or fstream class, and specify the name of the file.

Using the object created ifstream Use a while loop with the getline() function to read the file line by line.

After Reading the file content we will need to use the function close().

C++ Example to write a file

#include <iostream>
#include <fstream>

using namespace std;

int main() {
  // Create and open a text file called File_Name.txt it can be any name you want
  ifstream ReadExistingFile("File_Name.txt");

  // Use a while loop with the getline() function to read the file line by line
  while (getline (ReadExistingFile, myText)) {
    // Output the text from the file
    cout << myText;
  }

  // Close the file
  ReadExistingFile.close();
}

Conclusion

In this page (written and validated by ) you learned about C++ Read File . What's Next? If you are interested in completing Cpp tutorial, your next topic will be learning about: Cpp Create HTTP Request.



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