CODEWITHSUNDEEP
c++
eckomax87
eckomax87

Reputation: 33

C++ Getline & seekg

I have written a C++ program I have multiple of CSV file used as input, which I open one at a time and close it after extracting data to a output file which is the only file.

I run getline(inFile,line); outFile << line << endl;

I run this code, only only few files it suddenly output after about 200-300 line after and have a big whitespace in my output CSV file

But when I slower the code, like system("Pause") in the loop, I can get extract what I want perfectly....

Is my program running to fast, why getline would be skipping part of what things I want?

I really have no idea where the problem is coming from, or where to start

Many Thanks!

if (dataname[i] == dataname)
{
    inFile.seekg(datalength[i], ios::beg);
    for (int j = 0; j < datacount[i]; j++)
    {
        getline(inFile, line);
        outFile << line << endl;
    }

}

Upvotes: 1

Views: 1280

Answers (1)

Garland
Garland

Reputation: 921

Refer to Why seekg does not work with getline?

Add a clear() call before the seekg(pos) call to clear all error flags that might have been created by the getline(inFile, line) call.

inFile.clear();  // Clears all error flags.
inFile.seekg(pos);

Upvotes: 1

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