exenumversion
Build efficient enumerations for datatypes. Inspired by Feat for Haskell.
The exenum library offers constructors to build enumerations for datatypes, that is, functions from (arbitrarily large) integers to values. Such enumerations are typically used for unit testing. The library is efficient: the nth element of an enumeration is returned without having computed the (n1) previous elements. Complexity is in log(n), except for some pathological datatypes. See the homepage for details: http://exenum.forge.ocamlcore.org/ Inspired by Feat: Functional Enumeration of Algebraic Types, by Duregard, Jansson, Wang, Chalmers University. As an example, consider the following datatype: type term = Var of string  App of term * term  Lambda of string * term Using exenum, one may easily generate zillions of different lambdaterms. In our specific example, term number 2000000000000 happens to be ((((x v) (fun u > y)) ((fun u > y) (fun y > y))) (((x v) (fun u > v)) (fun u > y))) Efficiency: computing lambdaterm number 1E200 is instantaneous (on an antique Intel Centrino).
Author  D. Le Botlan <lebotlan@users.forge.ocamlcore.org> 

License  GPL3.0only 
Published  
Homepage  http://exenum.forge.ocamlcore.org/ 
Issue Tracker  http://exenum.forge.ocamlcore.org/ 
Maintainer  D. Le Botlan <lebotlan@users.forge.ocamlcore.org> 
Dependencies 

Optional dependencies  
Source [http]  https://download.ocamlcore.org/exenum/exenumsource/0.7/exenumsource0.7.tgz md5=31ec3baafaff2fbd49eb420728fbf6db 
Edit  https://github.com/ocaml/opamrepository/tree/master/packages/exenum/exenum.0.7/opam 
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