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| #include <vector>
#include <algorithm>
#include <numeric>
#include <functional>
class Vehicule
{
public:
virtual int GetNbRoues() =0;
};
class voiture : public Vehicule
{
public:
virtual int GetNbRoues() {return 4;};
};
class moto : public Vehicule
{
public:
virtual int GetNbRoues() {return 2;};
};
template<class T1, class T2>
T1 & addNay2 (T1 &a,T2 &b){return a+=b->GetNbRoues();};
int main(int argc, char* argv[])
{
std::vector<Vehicule*> vect;
vect.push_back( new voiture);
vect.push_back(new voiture);
vect.push_back(new moto);
vect.push_back(new moto);
vect.push_back(new voiture);
vect.push_back(new moto);
vect.push_back(new moto);
vect.push_back(new voiture);
int nb =std::accumulate(vect.begin(),vect.end(),0.f, std::ptr_fun(addNay2<float,Vehicule*>));
return 0;
} |
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