c++ - "ofstream" as function argument

Question

Is there a way to pass output stream as argument like

void foo (std::ofstream dumFile) {}

I tried that but it gave

error : class "std::basic_ofstream<char, std::char_traits<char>>" has no suitable copy constructor

Answer 1

Of course there is. Just use reference. Like that:

void foo (std::ofstream& dumFile) {}

Otherwise the copy constructor will be invoked, but there is no such defined for the class ofstream.