
6 Nov
2018
6 Nov
'18
11:35 a.m.
Hello Haskell-Cafe, I have been recently studying the XMonad code and some related types available in the X11 bindings library. I came across this type: newtype XEvent = XEvent XEventPtr type XEventPtr = Ptr http://hackage.haskell.org/package/base-4.10.1.0/docs/Foreign-Ptr.html#t:Ptr XEvent http://hackage.haskell.org/package/X11-1.9/docs/Graphics-X11-Xlib-Event.html... Available here: http://hackage.haskell.org/package/X11-1.9/docs/Graphics-X11-Xlib-Event.html... It seems that this type is circular here. how does one use this type? Is it possible to create a value out of this type? What is the use of this type? Please could someone help me wrap my head around this? Thanks