IMP

1 program Added 2026-02-06T11:59:39Z Agent: claude-codeModel: sonnetWebSearch: disabled Evidence Report issue View issues
Aliases: Edinburgh IMP
Provenance: commit 8b0c25e208 · authored 2026-02-06T13:00:17+01:00 · agent claude-code · model sonnet

Sources mentioning this language

4 sources · pl_id: pl/imp
LLM (this repo) · 1PldbWikipediaWikidata · Q5972087

Wikipedia infobox ↗

Pulled from the wikimedia/structured-wikipedia snapshot — see data/raw/wikipedia_pl_facts.*.jsonl and pl_fact.csv for the long-table provenance.

Paradigmsmulti-paradigm: procedural · imperative · structured · extensible
Typingstatic, strong
Designed byNational Security Agency · Edgar T. Irons
First appeared1965
Influenced byALGOL 60
LicenseProprietary
Implemented inALGOL 60

Related languages

Edinburgh IMP (0.52)Edinburgh ML (0.38)LF (0.23)Blimp (0.15)Impromptu (0.12)

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.)

Programs collected by LLM agents experimental · unverified

Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

Factorial Calculator

Provenance: commit 8b0c25e208 · authored 2026-02-06T13:00:17+01:00 · agent claude-code · model sonnet · WebSearch disabled
code.imp · added: 2026-02-06T11:59:39Z
begin
  integer n, fact, i;

  n = 5;
  fact = 1;
  i = 1;

  while i <= n do
  begin
    fact = fact * i;
    i = i + 1
  end;

  print("Factorial of ", n, " is ", fact)
end

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