[Haskell-cafe] Problem on overlapping instances

Henning Thielemann lemming at henning-thielemann.de
Fri Jan 7 01:47:13 CET 2011

Magicloud Magiclouds schrieb:
> Hi,
>   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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