vector flavors...., C++ (clang)

vector flavors....

//clang 3.8.0

#include <iostream>
#include <vector>
using namespace std;

class P {
public:
    P(int p):i(p) {
    }
    
    int getElem() {return i;}

private:
    int i;
};

int main()
{
    cout << "Hello, world!\n";
    
    vector<int> vi;
    vi.push_back(10);
    vi.push_back(20);
    vi.push_back(30);
    
    for(auto elem: vi)
        cout << elem << endl;
    cout << endl;
    
    vector<P> vp;
    vp.push_back(P(100));
    vp.push_back(P(200));
    vp.push_back(P(300));
    
    for(auto elem: vp)
        cout << elem.getElem() << endl;
    cout << endl;
    
    vector<P*> vpp;
    vpp.push_back(new P(1000));
    vpp.push_back(new P(2000));
    vpp.push_back(new P(3000));
    
    for(auto elem: vpp)
        cout << elem->getElem() << endl;
    cout << endl;
    
    vector<P*>::iterator vectorBeginIter = vpp.begin();
    vector<P*>::iterator vectorEndIter = vpp.end();
    
    while(vectorBeginIter != vectorEndIter) {
        cout << (*vectorBeginIter)->getElem() << endl;
        vectorBeginIter++;
    }
    cout << endl;

}


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