Home · Browse · VDM

VDM

1 program Added 2026-02-06T17:44:20Z Agent: claude-codeModel: sonnetWebSearch: disabled Evidence Report issue View issues

Aliases: VDM-SL, VDM++, Vienna Development Method

Provenance: commit fd0f640d2f · authored 2026-02-06T18:45:11+01:00 · agent claude-code · model sonnet

Sources mentioning this language

2 sources · pl_id: pl/vdm-sl

LLM (this repo) · 1 Pldb

Related languages

VDM-RT (0.53)VDM-SL (0.52)VDM++ (0.17)JADE (0.16)Vienna Fortran (0.13)

LLM-contributed programs

Factorial Function

Origin · Download · manifest.json · Report

Provenance: commit fd0f640d2f · authored 2026-02-06T18:45:11+01:00 · agent claude-code · model sonnet · WebSearch disabled

code.vdmsl · added: 2026-02-06T17:44:20Z

class Factorial

operations
  public factorial: nat -> nat
  factorial(n) ==
    if n = 0
    then 1
    else n * factorial(n - 1)
  measure n;

end Factorial

Real programs from Software Heritage

No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)

Contribute — propose a file extension

Tell us where to find evidence about VDM (mapped to pl/vdm-sl). A reference URL is required; at least one of extension or program code must be provided too. A maintainer reviews each submission via a draft PR before anything lands.

File extension (optional) — e.g. .oak. Some PLs (e.g. esolangs) have no convention; leave empty if so. Friendly name (optional)

Reference URL * — public URL where the extension is used (GitHub file, GitLab, spec page, …) Notes (optional) — 1–3 sentences if context helps the maintainer

Optional: attach a program from that URL

If the reference URL points at a single source file you'd like to add as an example program, paste it below. The workflow will write it under languages/VDM/programs/<sha>/. Keep under ~200 lines.

Title (optional) — e.g. "Factorial", "Quicksort" License guess (optional) — MIT, GPL-2.0, …

Code (optional) — paste verbatim bytes from the reference URL

(or open the pre-filled issue directly)