Template tuple - calling a function on each element

Question

My question is in the code:

template
struct TupleOfVectors {
  std::tuple...> tuple;

  void do_something_t         


        

Answer 1

I was testing with tuples and metaprograming and found the current thread. I think my work can inspire someone else although I like the solution of @Andy.

Anyway, just get fun!

#include 
#include 
#include 
#include 
#include 

template
typename std::enable_if< I != std::tuple_size::value, void >::type
for_each(const Tuple& tuple, Func&& func)
{
    func(std::get(tuple));
    for_each(tuple, func);
}

template
typename std::enable_if< I == std::tuple_size::value, void >::type
for_each(const Tuple& tuple, Func&& func)
{
    // do nothing
}


struct print
{
    template
    void operator () (T&& t)
    {
        std::cout << t << std::endl;
    }
};

template
void test(Params&& ... params)
{
    int sz = sizeof...(params);
    std::tuple values(std::forward(params)...);
    for_each(values, print() );
}


class MyClass
{
public:
    MyClass(const std::string& text) 
        : m_text(text)
    {
    }

    friend std::ostream& operator <<(std::ostream& stream, const MyClass& myClass)
    {
        stream << myClass.m_text;
        return stream;
    }

private:
    std::string m_text;
};


int main()
{
    test(1, "hello", 3.f, 4, MyClass("I don't care") );
}