SWI-Prolog -- exception_hook/4

Documentation
- Reference manual
  - The SWI-Prolog library
    - library(prolog_debug): User level debugging tools
- Packages

Availability::- use_module(library(prolog_debug)).

Source

[failure]exception_hook(+ExIn, -ExOut, +Frame, +Catcher)

Trap exceptions and consider whether or not to start the tracer.