//Operator over load for '+': union.
Set operator+(const Set& a, const Set& b){
int chunk;
if(a._chunk_size>b._chunk_size){
chunk = a._chunk_size;
}
else{
chunk = b._chunk_size;
}
Set c(chunk);
for(int i=0;i<a.cardinality();i++){
c.add(a._element[i]);
}
for(int t=0;t<b.cardinality();t++){
c.add(b._element[t]);
}
return c;
}
bool Set<T>::operator==(const Set& b) const
{
return this->cardinality() == b.cardinality() && b <= *this;
}
bool Set::operator<(const Set& b) const
{
if( (*this <= b) && (cardinality() < b.cardinality()) ) { return true; }
return false;
}
int main() {
cout << "Integer sets" << endl;
cout << "------------" << endl;
int intArray1[3] = { 1, 2, 3 };
int intArray2[3] = { 2, 3, 4 };
Set<int> A(intArray1, 3);
Set<int> B(intArray2, 3);
cout << "A = ";
cout << A << endl;
cout << "|A| = " << A.cardinality() << endl << endl;
cout << "B = ";
cout << B << endl;
cout << "|B| = " << B.cardinality() << endl << endl;
Set<int> C = A + B;
cout << "C = A + B (A union B)" << endl;
cout << "C = ";
cout << C << endl;
cout << "|C| = " << C.cardinality() << endl << endl;
Set<int> D = A ^ B;
cout << "D = A ^ B (A intersect B)" << endl;
cout << "D = ";
cout << D << endl;
cout << "|D| = " << D.cardinality() << endl << endl;
Set<int> E = A - B;
cout << "E = A - B (Set difference of A and B)" << endl;
cout << "E = ";
cout << E << endl;
cout << "|E| = " << E.cardinality() << endl << endl;
cout << endl;
cout << "String sets" << endl;
cout << "-----------" << endl;
string stringArr1[3] = { "Dog", "Cat", "Sheep" };
string stringArr2[3] = { "Cat", "Sheep", "Lion" };
Set<string> S1(stringArr1, 3);
Set<string> S2(stringArr2, 3);
cout << "S1 = ";
cout << S1 << endl;
cout << "|S1| = " << S1.cardinality() << endl << endl;
cout << "S2 = ";
cout << S2 << endl;
cout << "|S2| = " << S2.cardinality() << endl << endl;
Set<string> S3 = S1 + S2;
cout << "S3 = S1 + S2 (S1 union S2)" << endl;
cout << "S3 = ";
cout << S3 << endl;
cout << "|S3| = " << S3.cardinality() << endl << endl;
Set<string> S4 = S1 ^ S2;
cout << "S4 = S1 ^ S2 (S1 intersect S2)" << endl;
cout << "S4 = ";
cout << S4 << endl;
cout << "|S4| = " << S4.cardinality() << endl << endl;
Set<string> S5 = S1 - S2;
cout << "S5 = S1 - S2 (Set difference of S1 and S2)" << endl;
cout << "S5 = ";
cout << S5 << endl;
cout << "|S5| = " << S5.cardinality() << endl << endl;
return 0;
}
//Alla tal i this måste finnas i b och b måste vara större
//för att få ett proper subset
bool Set:: operator<(const Set& b) const
{
if (*this <= b && b.cardinality() > cardinality())
return true;
return false;
}
