Split string by a character?

Question

How can I split a string such as "102:330:3133:76531:451:000:12:44412 by the ":" character, and put all of the numbers into an int array (number sequence will always be 8 elements long)? Preferably without using an external library such as boost.

Also, I'm wondering how I can remove unneeded characters from the string before it's processed such as "$" and "#"?

Answer 1

stringstream can do all these.

1. Split a string and store into int array:

   string str = "102:330:3133:76531:451:000:12:44412";
   std::replace(str.begin(), str.end(), ':', ' ');  // replace ':' by ' '
   
   vector<int> array;
   stringstream ss(str);
   int temp;
   while (ss >> temp)
       array.push_back(temp); // done! now array={102,330,3133,76531,451,000,12,44412}
   

2. Remove unneeded characters from the string before it's processed such as $ and #: just as the way handling : in the above.

PS: The above solution works only for strings that don't contain spaces. To handle strings with spaces, please refer to here based on std::string::find() and std::string::substr().