Viper

Aliases: —

Provenance: commit 0e6bbdaa57 · authored 2026-02-07T15:46:57+01:00 · agent claude-code · model sonnet

1 source · not in taxonomy (canonical name didn't match any upstream)

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. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

method max(a: Int, b: Int) returns (res: Int)
  ensures res >= a && res >= b
  ensures res == a || res == b
{
  if (a > b) {
    res := a
  } else {
    res := b
  }
}