* (2019-09-12 19:59:25 UTC)*

# Packages matching: installed # Name # Installed # Synopsis base-bigarray base base-num base Num library distributed with the OCaml compiler base-threads base base-unix base camlp5 7.10 Preprocessor-pretty-printer of OCaml conf-m4 1 Virtual package relying on m4 coq 8.9.1 Formal proof management system num 0 The Num library for arbitrary-precision integer and rational arithmetic ocaml 4.05.0 The OCaml compiler (virtual package) ocaml-base-compiler 4.05.0 Official 4.05.0 release ocaml-config 1 OCaml Switch Configuration ocamlfind 1.8.1 A library manager for OCaml # opam file: opam-version: "2.0" maintainer: "Hugo.Herbelin@inria.fr" homepage: "https://github.com/coq-contribs/huffman" license: "LGPL 2.1" build: [make "-j%{jobs}%"] install: [make "install"] remove: ["rm" "-R" "%{lib}%/coq/user-contrib/Huffman"] depends: [ "ocaml" "coq" {>= "8.8" & < "8.9~"} ] tags: [ "keyword: Data Compression" "keyword: Code" "keyword: Huffman Tree" "category: Computer Science/Decision Procedures and Certified Algorithms/Correctness proofs of algorithms" "category: Miscellaneous/Extracted Programs/Combinatorics" "date: 2003-10" ] authors: [ "Laurent Théry" ] bug-reports: "https://github.com/coq-contribs/huffman/issues" dev-repo: "git+https://github.com/coq-contribs/huffman.git" synopsis: "A correctness proof of Huffman algorithm" description: """ This directory contains the proof of correctness of Huffman algorithm as described in: David A. Huffman, "A Method for the Construction of Minimum-Redundancy Codes," Proc. IRE, pp. 1098-1101, September 1952.""" flags: light-uninstall url { src: "https://github.com/coq-contribs/huffman/archive/v8.8.0.tar.gz" checksum: "md5=82b32f5cfbe4c692d497c8561ff2ec4a" }

- Command
`true`

- Return code
- 0

Dry install with the current Coq version:

- Command
`opam install -y --show-action coq-huffman.8.8.0 coq.8.9.1`

- Return code
- 5120
- Output
[NOTE] Package coq is already installed (current version is 8.9.1). The following dependencies couldn't be met: - coq-huffman -> coq < 8.9~ -> ocaml < 4.03.0 base of this switch (use `--unlock-base' to force) Your request can't be satisfied: - No available version of coq satisfies the constraints No solution found, exiting

Dry install without Coq/switch base, to test if the problem was incompatibility with the current Coq/OCaml version:

- Command
`opam remove -y coq; opam install -y --show-action --unlock-base coq-huffman.8.8.0`

- Return code
- 0

- Command
`true`

- Return code
- 0
- Duration
- 0 s

- Command
`true`

- Return code
- 0
- Duration
- 0 s

No files were installed.

- Command
`true`

- Return code
- 0
- Missing removes
- none
- Wrong removes
- none