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symbiosis

This folder contains several examples of using Prolog built-in meta-predicates and module meta-predicates that take closures as arguments. It is used to help test the Logtalk support for dealing with closures as it requires generation of a helper predicate per call to workaround a clash between the way Logtalk compiles predicates and the way a closure is extended to form a goal.

This example supports using ECLiPSe, GNU Prolog, SICStus Prolog, SWI-Prolog, Trella Prolog, and YAP as the backend compilers.

Print Logtalk, Prolog backend, and kernel versions (if running as a notebook):

%versions

Start by loading the example:

logtalk_load(symbiosis(loader)).

Using the Prolog backend maplist/2 predicate to check a list of integers:

symbiosis::p.

Using the Prolog backend maplist/3 predicate to convert characters into codes:

symbiosis::q(L).

Sorting lists of lists using the Prolog backend maplist/3 predicate:

symbiosis::r(L).

Adding one to each integer in a list using maplist/3 with a lambda expression with a built-in predicate:

symbiosis::s(L).

Adding one to each integer in a list using maplist/3 with a lambda expression with a local predicate:

symbiosis::t(L).