A.7 library(check): Consistency checking
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  • Documentation
    • Reference manual
      • The SWI-Prolog library
        • library(check): Consistency checking
          • check/0
          • list_undefined/0
          • list_undefined/1
          • list_autoload/0
          • list_redefined/0
          • list_cross_module_calls/0
          • list_void_declarations/0
          • list_trivial_fails/0
          • list_trivial_fails/1
          • trivial_fail_goal/1
          • list_strings/0
          • list_strings/1
          • list_rationals/0
          • list_rationals/1
          • list_format_errors/0
          • list_format_errors/1
          • string_predicate/1
          • valid_string_goal/1
          • checker/2
    • Packages
Availability::- use_module(library(check)).(can be autoloaded)
Source[det]check
Run all consistency checks defined by checker/2. Checks enabled by default are:

  • list_undefined/0 reports undefined predicates
  • list_trivial_fails/0 reports calls for which there is no matching clause.
  • list_redefined/0 reports predicates that have a local definition and a global definition. Note that these are not errors.
  • list_autoload/0 lists predicates that will be defined at runtime using the autoloader.