"ofstream" as function argument

c++ function ofstream
Shibli picture Shibli · Mar 11, 2012 · Viewed 53.7k times · Source

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

Boris Strandjev picture Boris Strandjev · Mar 11, 2012

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.

Related questions

Return array in a function

I have an array int arr[5] that is passed to a function fillarr(int arr[]): int fillarr(int arr[]) { for(...); return arr; } How can I return that array? How will I use it, say I returned a pointer how am …

Read More
Difference between a virtual function and a pure virtual function

What is the difference between a pure virtual function and a virtual function? I know "Pure Virtual Function is a Virtual function with no body", but what does this mean and what is actually done by the line below: virtual …

Read More
How to pass a vector to a function?

I'm trying to send a vector as an argument to a function and i can't figure out how to make it work. Tried a bunch of different ways but they all give different error messages. I only include part of …

Read More