Thread: STL lists

  1. #1
    Registered User
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    Fiji
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    STL lists

    Compiled the code on g++ and it won't work, why?

    Code:
    #include <iostream>
    #include <string>
    #include <list>
    #include <algorithm>
    using namespace std;
    
    void func(string t) {
        cout << t << endl;
    }
    
    int main() {
        list < string > prod_code;
        string temp;
        do {
     cout << "Enter Product Code: ";
     if (cin >> temp) {
         prod_code.push_back(temp);
     } else {
         break;
     }
        } while (1);
    
        sort( prod_code.begin(), prod_code.end() );
        for_each(prod_code.begin(), prod_code.end() , func);
        return 0;
    }

  2. #2
    geek SilentStrike's Avatar
    Join Date
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    Location
    NJ
    Posts
    1,141
    The compile won't work..? Least, I couldn't get it to go, but I modfied it a bit and it was all working fine.

    Code:
    
    #include <iostream>
    #include <string>
    #include <list>
    #include <algorithm>
    using namespace std;
    
    void func(string t) {
        cout << t << endl;
    }
    
    int main() {
        list < string > prod_code;
        string temp;
        do {
     cout << "Enter Product Code: ";
     if (cin >> temp) {
         // couldn't figure out how to make cin >> temp fail without exitting program :(
         if (temp != "stop")     prod_code.push_back(temp);
         else break;
     } else {
         break;
     }
        } while (1);
    
        // sort( prod_code.begin(), prod_code.end() );  // didn't compile with gcc 2.9.5 or 3.0.4
        // list's have their own special sort (std::uglyAndHackish :( ) because they don't have random access iterators
        // which makes the default (usual quicksort) simply no longer quick :).
        prod_code.sort();
        for_each(prod_code.begin(), prod_code.end() , func);
        return 0;
    }
    Prove you can code in C++ or C# at TopCoder, referrer rrenaud
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  3. #3
    Registered User
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    Sep 2001
    Location
    Fiji
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    Thanks heaps for your help, greatly appreciated. I compiled the code and it works. Thank you.

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