spy/1

4.39 Debugging and Tracing Programs

AllApplicationManualNameSummaryHelp

Documentation
- Reference manual
  - Built-in Predicates
    - Debugging and Tracing Programs
      - trace/0
      - tracing/0
      - notrace/0
      - guitracer/0
      - noguitracer/0
      - trace/1
      - trace/2
      - notrace/1
      - debug/0
      - nodebug/0
      - debugging/0
      - spy/1
      - nospy/1
      - nospyall/0
      - leash/1
      - visible/1
      - unknown/2
      - style_check/1
- Packages

Availability:built-in

Source

spy(+Pred)

Put a spy point on all predicates meeting the predicate specification Pred. See section 4.5.