ifstream with VC++ 2010

[thomascrabs]

Hi,

Really obvious question I hope. Had a look around but I guess it's such an obvious thing nobody else in the world could get this wrong!

I did a fair bit of stuff in C++ about a year ago and am now getting back into it a little. Believe it or not I can't get a basic ifstream to work!

Here is my code snippet:

		string urlToTest;
		ifstream tests("c:\test\tests.txt");
		//tests.open("tests");
		//char* testInp = argv[1];
		//ifstream tests("c:\test\tests.txt");
		
		while(tests.good())
		{

			getline(tests, urlToTest);
}

Obviously this isn't the full thing - the thing compiles fine. The problem is the while statement "fails" every time - and before anyone suggests it I am certain the file exists; I have also tried files in the working / current directory.

The reason why I have put VC++ 2010 in the Title is that in VC++ 2005 which I used before, this worked fine - it is actually old code. I had to do a bit of messing around getting some stuff to work from 2005 to 2010 - I just can't work this out.

Anyone had a similar problem, or can help??

Thanks

[Seraphimsan]

on line two replace c:\test\tests.txt with c:\\test\\test.txt

to explain why, you should note that '\' signifies the opening of an escape sequence. Such as '\n' to input a new line or '\0' for NULL.

[thomascrabs]

Thanks for the quick reply. That hasn't actually worked though.

I have just tried creating a file first using ofstream and then reading that in and it has worked?!?!?!?! It doesn't seem to work on "existing" files...

Does anyone know why - windows security access levels are fine, so i've no idea.

[Seraphimsan]

can you give me an exact error message?

[thomascrabs]

Sorry no error - ive just debugged and it skips passed the while statement...

[Seraphimsan]

how are you making the file?

unless something is wrong with other parts of your code, that SHOULD be working.

EDIT:

instead of checking if the status bit is good, I'd use while(!tests.eof())

That checks for the bit being set when the file is at its end.