Heinrich Apfelmus

Heinrich Apfelmus has asked 12 questions and find answers to 105 problems.

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I'm a programmer, mainly interested in purely functional programming languages like Haskell.

Heinrich Apfelmus questions

Example code for a minimal paint program (MS Paint style)
Haddock: Document a declaration with inferred type signature?
Package versioning policy - Harmless type changes?
Heuristics for estimating the efficiency of Reduced Ordered Binary Decision Diagrams?
Writing a paint program à la MS Paint - how to interpolate between mouse move events?
Haddock, Cabal: How to include source code examples?
Prompting for a password in Haskell command line application
Haskell Graphics Library that works in GHCi on MacOS X
Killing a thread when MVar is garbage collected

Heinrich Apfelmus answers

Mapping which holds and passes previous result
Example code for a minimal paint program (MS Paint style)
Monadic equivalent of applicative <*
Dynamic Elements based on Behaviour in threepenny-gui
How to transform events with an IO function?
frameworks for representing data processing as a pipeline
Where to apply Behavior (and other types) in FRP
Prim's MST algorithm in O(|V|^2)
reactive-banana-wx `sink` does not generate an event enabling post-sink processing
Control.MonadPlus.Free without unnecessary distribution