Thread: std::ifstream question

I would like to respond to a failure of not being able to open a file by trying to open a different file, but it seems like if you fail once you're going to fail again even if you try to open a file that is really there:

Code:

std::ifstream f;
	f.open(filename.c_str());

	if(f.fail())
	{
		// do something appropriate
		f.close();
		f.open("data\\setpieces\\24x24_1_0_0.txt");
	}

// f will fail again even though the file I'm trying to open is really there

Is there some way of revalidating the f object?

f.clear()

The stream object has error flags that get set when there is a problem. They stay set until you clear() them.

wow what a fast responce. I'll have to come here more often. Thanks.

f.clear() did the trick. Thanks, i didn't see that function documented on msdn.microsoft.com