Tutorial on writing extensions for C++

[Ritesh Tijoriwala]

I am trying to find a tutorial for writing extensions for C++ libraries.
I have my existing libraries which are C++ and want to use them in Ruby.
I know SWIG generates an wrapper but am looking for other options.

Any help ???

 

[Francis Cianfrocca]

I am trying to find a tutorial for writing extensions for C++ libraries.
I have my existing libraries which are C++ and want to use them in Ruby.
I know SWIG generates an wrapper but am looking for other options.

Any help ???

README.EXT in the Ruby source.