Vector of Structures

Question

I have some code given to me by another person in which we have a structure

struct Pair {
    string s1;
    string s2;
    bool equivalent;
  };
         


        

Answer 1

Your code is not legal C++. It is legal C++0x but there have been many changes to the language. So if you want to compile this code as C++ code, you'll need to change it.

PigBen's solution is one way, the problem with it being the temporary data could be constructed & destroyed many times, or live for a long time.

Here's another way:

    struct Pair {
        string s1;
        string s2;
        bool equivalent;
      };

    Pair make_Pair(const string& s1, const string& s2, bool equivalent)
    {
        Pair ret;
        ret.s1 = s1;
        ret.s2 = s2;
        ret.equivalent = equivalent;
        return ret;
    }

    // somewhere in the init code...
        std::vector PairID;


   PairID.push_back(make_Pair("string","string2",true)); 
    PairID.push_back(make_Pair("string","string3",true));
    PairID.push_back(make_Pair("string","string4",false));
    PairID.push_back(make_Pair("string","string7",false));
    PairID.push_back(make_Pair("string3","string8",false));