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require 'example'
a = 37
b = 42
# Now call our C function with a bunch of callbacks
puts "Trying some C callback functions"
puts " a = #{a}"
puts " b = #{b}"
puts " ADD(a,b) = #{Example.do_op(a,b,Example::ADD)}"
puts " SUB(a,b) = #{Example.do_op(a,b,Example::SUB)}"
puts " MUL(a,b) = #{Example.do_op(a,b,Example::MUL)}"
puts "Here is what the C callback function objects look like in Ruby"
puts " ADD = #{Example::ADD}"
puts " SUB = #{Example::SUB}"
puts " MUL = #{Example::MUL}"
puts "Call the functions directly..."
puts " add(a,b) = #{Example.add(a,b)}"
puts " sub(a,b) = #{Example.sub(a,b)}"
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