13.7.1. C++

Try these first

1. 1.

   What does the fail() method do in C++?

   Hint

   Think about what happens when an attempt to open a file fails.

2. 2.

   How would you check for errors after reading from a file in C++?

   Hint

   Recall how the stream state can affect your operations.

3. 3.

   What method would you use to check if the last I/O operation failed?

   • check()
   • fail()
   • error()

   Hint

   It shares its purpose with diagnosing failures in operations.

4. 4.

   True or False: The bad() method indicates a minor error in file operations.

   • True
   • False

   Hint

   Consider the severity of stream errors.

5. 5.

   Write a C++ program that opens a file and includes error handling for both access failure and critical stream errors. Include comments explaining your code.

   Hint

   Handle both types of errors separately after trying to perform file operations.

6. 6.

   Design a scenario where it would be important to check both for fail() and bad() while streaming data. Explain your answer.

   Hint

   Consider transitional states during I/O operations where errors can arise.