Gnimuc

function foo(genconv, I, J)
    genconv[sub2ind(size(genconv),I,J)]
end
function bar(genconv, I, J)
    diag(sub(genconv, I, J))
end
function baz(genconv, I, J)
    [genconv[i,j] for (i,j) in zip(I, J)]
end

Gnimuc

# load dependency packages
using GLFW, ModernGL

# set up OpenGL context version
@osx_only const VERSION_MAJOR = 4    # it seems OSX will stuck on OpenGL 4.1.
@osx_only const VERSION_MINOR = 1

# initialize GLFW library, error check is already wrapped.
GLFW.Init()

Gnimuc

type Chain
  value :: Int
  right :: Chain
  left :: Chain
  #Make the last link in the chain point to itself
  #so as to spare us from the julia workaround for nulls
  Chain(value::Int) = (chain = new(); chain.value = value; chain.right = chain; chain.left = chain; chain)
end