How to Parse a Comma-Delimited String into an Integer Array Using std::stringstream?

Parsing a Comma-Delimited String Using std::stringstream

To parse a comma-separated string into an integer array, you can leverage the power of std::stringstream. Here's a step-by-step guide on how to achieve this:

1. Instantiate a Stringstream Object:

   std::stringstream ss(str);

   This creates a stringstream object ss that reads from the comma-separated string str.

2. Iterate Through the Stream:

   for (int i; ss >> i;) {
       // ...
   }

   Use a for loop to extract numbers from the stringstream. Each iteration attempts to read an integer i from ss. If successful, the following character in the stream must be a comma.

3. Check for Commas:

   if (ss.peek() == ',')
       ss.ignore();

   After extracting each number i, check if the next character in the stream is a comma. If so, discard it using ignore().

4. Store the Numbers in an Array:

   vect.push_back(i);

   Add each extracted number i to a vector or array, such as vect.

5. Iterate and Display Results:

   for (std::size_t i = 0; i < vect.size(); i++)
       std::cout << vect[i] << std::endl;

   Finally, iterate through the vector or array to display or use the parsed numbers as needed.

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