julia-ruby.rb

require 'fiddle'
require 'fiddle/import'

module Julia
  extend Fiddle::Importer

  # Linux
  dlload Fiddle.dlopen('libjulia.so.0.6')

  typealias "uint8_t", "unsigned char"

  extern 'int jl_cpu_cores(void)'
  extern 'void jl_init(void)'
  extern 'jl_value_t *jl_eval_string(const char *str)'
  extern 'void jl_atexit_hook(int status)'
  extern 'uint8_t jl_unbox_uint8(jl_value_t *v)'
end

Julia.jl_init
puts "CPU: #{Julia.jl_cpu_cores}"
eval = Julia.jl_eval_string("1+1")
puts Julia.jl_unbox_uint8(eval)
Julia.jl_atexit_hook(0)