function with an istream& parameter C++

Question

I would like my program to read a file using the function \"readFile\" below. I am trying to find out how to call a function with an istream& parameter. The goal of the

Answer 1

The first argument to the std::ifstream constructor should be a string. You're trying to pass it a std::istream. Maybe the std::istream contains the name of the file you want to read, in which case you want to extract the name into a std::string first. Something like this might work:

std::string fileName;
name >> fileName;
std::ifstream file(fileName, ios::in);