将通用迭代器传递给 function cpp

Question

Trying to send an iterator function using Template, that can get any iterator (from array, queue, etc..). [in the example, I send vector]

THE ERROR: line 15 not compile:

ExampleVector <int> vec(values.begin(), values.end())")

template <typename ExampleVectorType>
class ExampleVector //new  class
        {
            template <class InputIterator> // generic iterator
            ExampleVector (InputIterator& first, InputIterator& last) // constructor (do nothing)
            {
            }
        };
int main()
{
    /* Create the values */
    std::vector<int> val{4, 8, 12};
    /* Create the vec */
    ExampleVector <int> vec(val.begin(), val.end());
}

Answer 1

After fixing one compile time error after another I get this code:

#include <iostream>
#include <vector>
 
template <typename ExampleVectorType>
class ExampleVector //new  class
        {
            public:
            template <class InputIterator> // generic iterator
            ExampleVector (const InputIterator& first, const InputIterator& last) // constructor (do nothing)
            {
            }
        };
int main()
{
    /* Create the values */
    std::vector<int> val{4, 8, 12};
    /* Create the vec */
    ExampleVector <int> vec(val.begin(), val.end());
}

The errors and solutions are:

1. values ==> val
2. missing public: before the constructor
3. You cannot pass an rvalue to a function, which expects an lvalue reference, therefore I changed the function to get const lvalue references.