parsing in c++

This is a discussion on parsing in c++ within the C++ Programming forums, part of the General Programming Boards category; Code: // reading a text file #include <iostream> #include <fstream> #include <string> using namespace std; int main () { string ...

  1. #1
    Registered User
    Join Date
    May 2007
    Posts
    35

    parsing in c++

    Code:
    // reading a text file
    #include <iostream>
    #include <fstream>
    #include <string>
    using namespace std;
    
    int main () {
      string line;
      ifstream myfile ("example1.txt");
      ofstream myargument ("putonqueue.txt",ios::out | ios::app);
      if (myfile.is_open())
      {
        while (! myfile.eof() )
        {
    	 // expects either space-delimited numbers 
        
        
        while( getline(myfile,line) ) {
         
            istringstream ss (line);
            double d;
            while( ss >> d ) {
              cout << "  got a number: " << d << endl;
            }
          }
     }
        myfile.close();
        myargument.close();
      }
    
      else cout << "Unable to open file"; 
    
      return 0;
    }
    Hi I am trying to parse a text file in c++.The above code gives a compiler error:
    argque.cpp: In function `int main()':
    argque.cpp:20: error: variable `std::istringstream ss' has initializer but incomplete type

    what does it mean?
    any help or insight is appreciated.
    Thanks
    shweta

  2. #2
    C++ Witch laserlight's Avatar
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    You forgot to #include <sstream>.
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