C++ - Implementing my own stream

Question

Hello! My problem can be described the following way:

I have some data which actually is an array and could be represented as char* data with some size

I also have some legacy code (function) that takes some abstract std::istream object as a param and uses that stream to retrieve data to operate.

So, my question is the following - what would be the easy way to map my data to some std::istream object so that I can pass it to my function? I thought about creating a std::stringstream object from my data, but that means copying and (as I assume) isn't the best solution.

Any ideas how this could be done so that my std::istream operates on the data directly?

Thank you.

Answer 1

If you're looking at actually creating your own stream, I'd look at the Boost.Iostreams library. It makes it easy to create your own stream objects.