Computer Dictionary/Constraint Logic Programming
(CLP) A programming framework based (like Prolog) on LUSH (or SLD) resolution, but in which unification has been replaced by a constraint solver. A CLP interpreter contains a Prolog-like inference engine and an [[Computer Dictionary/incremental constraint solver|incremental constraint solver]]. The engine sends constraints to the solver one at a time. If the new constraint is consistent with the collected constraints it will be added to the set. If it was inconsistent, it will cause the engine to backtrack.
CLP* is a variant.
["Constraint Logic Programming", J. Jaffar et al, 14th POPL, ACM 1987].
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