struct Inventory
    {
       string partNum;
       vector<int> quan;
    };

#Read an entire line with getline(), then use the stringstream class to parse this string.

#You have an inventory "record" on each line. Everything on one line is related. This is where a structure comes into play. You use #one record, a structure, to contain everything on one line. Say your structure is named Inventory, you then use a vector<Inventory> #to hold the entire inventory.

#http://www.cplusplus.com/doc/tutorial/structures/ if you need more info on structs

#There are several ways to retrieve information from a file. On way is to treat every thing as a string, the other is to retrieve the #information into the correct data type using the extraction operator >>

#http://www.cplusplus.com/doc/tutorial/files/ for more on file I/O

#extract the file to your structure variables. Use getline() to extract your string, then just use the extraction operator>> to #extract all the rest of the variables.

Example (really good starting place if nothing else):

    char comma;
    string temp;
    while(getline(temp,','))
    {
        // Use a temporary variable to make adding to the vector cleaner.
        // Add an empty element to your vector. Only do this if you are able to read the first item.
        v.push_back(Inventory());

       // Copy temp to this element's partNum.
       v.partNum = temp;
       file >> v.totalQuan;
       for(int i = 0; i < NumQuan; ++i)
       {   // The variable comma is used to extract the comma and throw it away.
          file >> comma >> v.quan[i];
       }
    }