C++ std::ifstream in constructor problem

Question

I\'ve got a problem with this code:

#include 

struct A
{   
    A(std::ifstream input)
    {
        //some actions
    }
};

int main()
{
           


        

Answer 1

Streams are non copyable.

So you need to pass by reference.

struct A
{   
    A(std::ifstream& input)
                 ^^^^^
    {
        //some actions
    }
};