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c++readfile

C++ read pipe delimited file


I have file1.txt with this information

4231650|A|4444
4225642|A|5555

I checked the code here for how to read pipe delimited file in C++

C++ Read file line by line then split each line using the delimiter

I modified the code a little bit per my needs. The problem is that it reads the first pipe fine but afterwards how do I read rest of the values?

This is my code:

std::ifstream file("file1.txt");
    std::string   line;

    while(std::getline(file, line))
    {
        std::stringstream   linestream(line);
        std::string         data;
        std::string         valStr1;
        std::string         valStr2;


        std::getline(linestream, data, '|');  // read up-to the first pipe

        // Read rest of the pipe values? Why did the accepted answer worked for int but not string???
        linestream >> valStr1 >> valStr2;

        cout << "data: " <<  data << endl;
        cout << "valStr1: " <<  valStr1 << endl;
        cout << "valStr2: " <<  valStr2 << endl;
    }

Here's the output:

Code Logic starts here ...
data: 4231650
valStr1: A|4444
valStr2: A|4444
data: 4225642
valStr1: A|5555
valStr2: A|5555
Existing ...

Solution

  • Why did the accepted answer worked for int but not string?

    Because | is not a digit and is an implicit delimiter for int numbers. But it is a good char for a string.

    Continue doing it in the same way

    std::getline(linestream, data, '|');
    std::getline(linestream, varStr1, '|');
    std::getline(linestream, varStr2);