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I have a ruby script. I need to access the functions written in c/c++ in my ruby script. Can any one tell me how to access these functions. Thanks in advance.

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Other options are:

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Ryan Davis has created a 'Hello, World!' C extension example for beginners:

https://github.com/zenspider/ruby-c-example

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You could also try Rubyinline

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You can create a Ruby module that wraps your C/C++ functions using SWIG.

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Miguel thanks for support, is there any way without the use of software like SWING.
SWIG is the cleanest solution, but you have a number of other options. You could make an executable from your C functions, then invoke the executable from Ruby via a system() call, for example.

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