($)/0

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Predicate $/0

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Documentation
- Reference manual
  - Built-in Predicates
    - Debugging and declaring determinism
      - det/1
      - $/0
      - $/1
- Packages

Availability:built-in

[experimental]$

The $/0 constructs acts similar to the !/0, but in addition declares that the remainder of the clause body shall succeed deterministically. It exploits the same underlying mechanism as the det/1 declaration. See also $/1.

Violations throw an error/2 exception determinism_error(Pred, Declared, Observed, guard).