Thread: How do you know if a C++ fstream operation failed?

say you have the following code:

Code:

fstream mystream;
if (mystream.is_open())
{
   mystream << 55;
   mystream.close();
}

How would I know if the "mystream << 55" actually worked and wrote the 55 to the file? The fstream part of C++ seems heavily documented in the usage of what you can do, but no ones seems interested in error handling.