Использование нововведений C++0x

#include <iostream>
 
template <typename T>
T Sum(T n, T m)
{
    return n+m;
}
 
int main()
{
    auto n=5.483, m=3.323;
    decltype(Sum(n,m)) sum=Sum(n,m);
    std::cout<<sum<<'\n';
    return 0;
}

template<class T1, class T2>
auto foo (T1 a, T2 b) -> decltype(a*b) {
  return (a * b);
}

#include <iostream>
#include <string>
 
using namespace std;
 
void foo(string &s)
{
    cout << s << endl;
}
 
string bar()
{
    return "string";
}
 
int main()
{
    foo(bar());
 
    system("PAUSE");
    return 0;
}

#include <iostream>
#include <string>
 
using namespace std;
 
void foo(string &s)
{
    cout << s << endl;
}
 
void foo(string &&s)
{
    cout << "&&" << s << endl;
}
 
string bar()
{
    return "string";
}
 
int main()
{
    foo(bar());
 
    system("PAUSE");
    return 0;
}

void foo(const string &s)

    int Arr[] = {1,2,-1,-2,3,-3,4,-4,5,-5}; 
    std::vector<int> Vec(Arr, Arr+sizeof Arr/sizeof(Arr[0]));

[&Sum, &Mult, &Sub](int Elem) {Sum+=Elem; Mult*=Elem; Sub-=Elem;}

std::vector<int> vec = {1,2,-1,-2,3,-3,4,-4,5,-5};

#include <iostream>
 
template <typename T>
T Sum(T n, T m)
{
        return n+m;
}
 
int main()
{
        auto n=5.483, m=3.323;
        decltype(Sum(n,m)) sum=Sum(n,m);
        std::cout<<sum<<'\n';
        return 0;
}