News

• Wed Jan 24 10:26:12 EST 2007. An alternative version of the "read lines of ASCII integers from stdin and print the total" C++ program shown in class is given below. The one in the slides is optimized for speed; this one is more object-oriented and uses the Standard Template Library. These particular puns are from your delightful TA.

  • #include 
    #include 
    #include 
    #include 
    #include 
    
    using namespace std;
    
    // Wes does the math
    
    class Wes : public unary_function {
    private:
      int sum;
    public:
      Wes() : sum(0) { }
      void operator()(int x) {sum +=x ;}
      int total() { return sum; }
    };
    
    int main() {
      Wes tside_story = for_each(istream_iterator(cin),
                                 istream_iterator(),
                                 Wes());
    
      cout << tside_story.total() << endl;
    
      return EXIT_SUCCESS;
    }
      

• Tue Jan 23 23:25:44 EST 2007. No discussion section tomorrow -- Wednesday, January 24. Discussion sections will start next week.
• Tue Jan 23 10:52:53 EST 2007. A bug has been found in version 1.00 of the Cool reference interpreter -- it fails to check that the number of actual arguments and formal parameters is equal in a method invocation. Version 1.01 fixes this problem. If you are the first to report a legitimate Cool bug to Pieter you will receive extra credit.