Question

I want to read a file line by line. Did something like

void Parse (string filepath) {
    ifstream sourceFile;
    sourceFile.open(filepath);
    for (string line; getline(sourceFile, line);) {
        cout << "1" << endl;
        cout << line << endl;
    }
}

int main() {
    Parse("C:\\test.txt");

    getchar();
    return 0;
}

Then put some text into C:\test.txt, but when I run, I dont get anything. Why? Not even the “1”. I notice no exception if the file is not there too. I suppose that a sign of a problem?

Answer 1

I think you have problems opening the file. I would suggest two things:

• check if sourceFile is opened successfully(if (sourceFile))
• debug the code and see the code path your code follows.

EDIT: adding the actual solution to the problem in my answer(instead of just a comment) so that people won’t miss it:

Here is one more thought – check the file name in its properties. Has happened to me that if windows hides the extension of the file the name is actually test.txt.txt, while what I see displayed is only test.txt.