I am an experienced C/C++ developer but I am a novice in Ruby.
How can I call a C++ function from with in Ruby?
4 Answers
To call C++ code from Ruby, you will likely want to build an extension.
If you are an experienced C++ developer, you may feel comfortable with Rice:
https://github.com/jasonroelofs/rice
It uses C++ metaprogramming techniques to simplify writing extensions.
If you were calling into C, you could also use ffi. Calling C++ code is a little more complicated than calling C code due to name mangling and exceptions.
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