Hello, why does operator overload <?

#include <iostream> #include <conio.h> using namespace std; class Date { int kurs; float rate, avarage; public: Date(int m, float d, float y) { kurs = m; rate = d; avarage = y; } bool operator < (Date &v1) { int vTemp1 = v1.kurs; return vTemp1; } ~Date(){} }; int main() { Date dt(35, 116, 92); Date dt1(70, 69, 92); bool k = dt1<dt; if(k) cout << "dt < dt1"; else cout << "dt > dt1"; getch(); return 0; }

Closed due to the fact that off-topic participants Abyx , ߊߚߤߘ , Sergey Gornostaev , Nick Volynkin ♦ 6 Oct '17 at 4:29 .

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    1 answer 1

    Well, you have it written in such a way that whatever you compare, the kurs of what is to the right of the comparison, reduced to bool , is displayed true ...

    If you want to, say, compare across the kurs field, write

     bool operator < (const Date &v1) const { return kurs < v1.kurs; }