Counting number of integers in text file (undeclared identifier using fin>>x)

Question

I have a text file with an unknown number of integers. I created a dynamic array without trouble, but the numbers have varied spacing and digits. I would normally go through each position to count the number of spaces used, subtracting space from it, but that won't work in this case.

I thought to use something like this: (which similar questions would suggest)

    do
    {

        if (!file.is_open())
        {
            file.open(donation);
        }

        fin >> temp;
        charCount++;
    } 
    while (file.peek() != EOF);

    cout << charCount;

Now, I have fstream included, and I am using namespace std, and I have no problem opening and reading the text file, but visual studio 2015 tells me:

Error C2065 'fin': undeclared identifier

I don't understand what I am doing that is triggering that type of response from the IDE.

OK, could you guys STOP down voting this? I'd rather not get banned for life because you don't like the question. So I overlooked something. It's still a well written question that is simple and to the point. — Elliander, Feb 20 '16 at 19:29

score 2 · Accepted Answer · edited Feb 22 '16 at 21:00

2

file is the name of your ifstream, right? If so, line

fin >> temp;

should be

file >> temp;

edited Feb 22 '16 at 21:00

Peter Mortensen

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answered Feb 20 '16 at 04:21

NickLamp

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Thank you! I can't believe I missed that! – Elliander Feb 20 '16 at 04:23

Counting number of integers in text file (undeclared identifier using fin>>x)

1 Answers1