A.16 library(error): Error generating support
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  • Documentation
    • Reference manual
      • The SWI-Prolog library
        • library(error): Error generating support
          • type_error/2
          • domain_error/2
          • existence_error/2
          • existence_error/3
          • permission_error/3
          • instantiation_error/1
          • uninstantiation_error/1
          • representation_error/1
          • syntax_error/1
          • resource_error/1
          • must_be/2
          • is_of_type/2
          • has_type/2
          • current_encoding/1
          • current_type/3
    • Packages
Availability::- use_module(library(error)).(can be autoloaded)
Source[nondet]current_type(?Type, @Var, -Body)
True when Type is a currently defined type and Var satisfies Type of the body term Body succeeds.