Re: set_prolog_flag

[Daniel Diaz]

There are no user defined Prolog flags and the reported error fits the ISO 
normative reference for Prolog (but you can use the internal database to 
achieve this using assert/retract or GNU Prolog global variables).

address@hidden said:
> For example, the statement :
>   |?- set_prolog_flag('userflag','yes').
>   returns:
>   uncaught exception: 
> error(domain_error(prolog_flag,userflag),set_prolog_flag/2)



-- 
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                 Daniel Diaz
University of Paris 1      INRIA Rocquencourt
75013 Paris FRANCE      78153 Le Chesnay FRANCE
        web: http://pauillac.inria.fr/~diaz
        email: address@hidden
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