Can some one explain what the !a does in this: data Color3<http://cvs.haskell.org/Hugs/pages/libraries/OpenGL/Graphics-Rendering-OpenGL-GL-VertexSpec.html#t%3AColor3>a = Color3<http://cvs.haskell.org/Hugs/pages/libraries/OpenGL/Graphics-Rendering-OpenGL-GL-VertexSpec.html#v%3AColor3>!a !a !a
http://cvs.haskell.org/Hugs/pages/libraries/OpenGL/Graphics-Rendering-OpenGL-GL-VertexSpec.html#t%3AColor3 Thanks, Daryoush
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