Rice 1.2.0

Rice: Ruby Interface for C++ Extensions

What is Rice?

Rice is a C++ interface to Ruby’s C API. It provides a type-safe and
exception-safe interface in order to make embedding Ruby and writing
Ruby extensions with C++ easier. It is similar to Boost.Python in
ways, but also attempts to provide an object-oriented interface to all
of the Ruby C API.

What’s New?

  • Rice::Director - Seemless Polymorphism across C++ and Ruby (named
  • Default Arguments
  • Removed explicit self requirement for global / module functions
  • Various bug fixes

Supported Platforms:

  • Linux
  • Mac OS X 10.5 and 10.6

Windows support is iffy right now. Waiting to see how the mingw build
Ruby comes along.

What Rice gives you:

  • A simple C+±based syntax for wrapping and defining classes
  • Automatic conversion of exceptions between C++ and Ruby
  • Smart pointers for handling garbage collection
  • Wrappers for most builtin types to simplify calling code

Documentation: http://rice.rubyforge.org

Project Page: http://github.com/jameskilton/rice

Google G.: http://groups.google.com/group/ruby-rice

How do you get Rice?

gem install rice

Note: Rice does require a C++ compiler. See the Documentation page for
more details.

How simple of a syntax?


#include <rice/Class.hpp>
#include <rice/Constructor.hpp>

class MyWrapper {
MyWrapper() { }

  void doThis() { }
  int doThat(int a, float b) { }


extern “C”
void Init_wrapper()
.define_method(“do_this”, &MyWrapper::doThis)
.define_method(“do_that”, &MyWrapper::doThat);


require ‘mkmf-rice’


require ‘wrapper’
c = MyWrapper.new
c.do_that(1, 2.0)

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