OneTuple: Singleton Tuple

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This package provides a singleton tuple data type

data OneTuple a = OneTuple a

Note: it's not a newtype


Versions 0.1.0, 0.1.1, 0.2.0, 0.2.1, 0.2.2,,, 0.3, 0.3.1
Change log
Dependencies base (>=4.3 && <4.15), semigroups (>=0.18.4 && <0.20) [details]
License BSD-3-Clause
Copyright (c) John Dorsey 2008
Author John Dorsey <>
Maintainer Oleg Grenrus <>, John Dorsey <>
Category Data
Source repo head: git clone
Uploaded by phadej at 2020-03-27T04:40:48Z




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