[Haskell-cafe] Problem on overlapping instances

Magicloud Magiclouds magicloud.magiclouds at gmail.com
Wed Jan 5 09:24:47 CET 2011

  I am using Data.Binary which defined "instance Binary a => Binary
[a]". Now I need to define "instance Binary [String]" to make
something special for string list.
  How to make it work? I looked into the chapter of
overlappinginstances, nothing works.

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