struct operators

structOps.cpp

#include <string>
#include <iostream>
#include <algorithm>

using namespace std;

struct stringStruct{
    string stringMember;
    bool operator<(stringStruct a){
        return stringMember < a.stringMember;
    }
    bool operator<(stringStruct* a){
        return stringMember < a->stringMember;
    }
};

ostream& operator<<(ostream& out,stringStruct& ss){
    return out<<ss.stringMember;
}
ostream& operator<<(ostream& out,stringStruct* ss){
    return out<<ss->stringMember;
}

struct sorter{
    bool operator()(stringStruct* a, stringStruct* b){
        return a < b;
    }
};

void sort1(stringStruct* sStructArray,int& size,sorter& sortr){
    sort(sStructArray,sStructArray+size,sortr);
}

void sort2( stringStruct* sStructArray,int size){
    std::sort(sStructArray,sStructArray+size,[](stringStruct a,stringStruct b){
       return a < b;
    });
}

template <int size>
void sort3(stringStruct* stringStructArray){
    sort(stringStructArray,stringStructArray+size,[](stringStruct a,stringStruct b){
        return a < b;
    });
}


int main() {

    sorter sort;

    stringStruct sStructArray[] =
    {"G","H","D","E","F","I","U","V","W","J","K","L","A","T","X","Y","B","C","P","Q", "M","N","O","R","S","Z"};
    const int size = sizeof(sStructArray) / sizeof(stringStruct);
    cout<<"sizeof array "<<sizeof(sStructArray)<<" sizeof struct "<<sizeof(stringStruct)<<" "<<size<<endl;
    sort3<size>(sStructArray);
    for(auto ss : sStructArray){
        cout<<ss<<endl;
    }


    return 0;
}