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Constraint functional logic programming over finite domains

Published online by Cambridge University Press:  01 September 2007

ANTONIO J. FERNÁNDEZ
Affiliation:
Dpto. de Lenguajes y Ciencias de la Computación, Universidad de Málaga, Spain E-mail: afdez@lcc.uma.es
TERESA HORTALÁ-GONZÁLEZ
Affiliation:
Dpto. de Sistemas Informáticos y Programación Universidad Complutense de Madrid, Spain E-mails: teresa@sip.ucm.es, fernan@sip.ucm.es, rdelvado@sip.ucm.es
FERNANDO SÁENZ-PÉREZ
Affiliation:
Dpto. de Sistemas Informáticos y Programación Universidad Complutense de Madrid, Spain E-mails: teresa@sip.ucm.es, fernan@sip.ucm.es, rdelvado@sip.ucm.es
RAFAEL DEL VADO-VÍRSEDA
Affiliation:
Dpto. de Sistemas Informáticos y Programación Universidad Complutense de Madrid, Spain E-mails: teresa@sip.ucm.es, fernan@sip.ucm.es, rdelvado@sip.ucm.es

Abstract

In this paper, we present our proposal to Constraint Functional Logic Programming over Finite Domains (CFLP()) with a lazy functional logic programming language which seamlessly embodies finite domain () constraints. This proposal increases the expressiveness and power of constraint logic programming over finite domains (CLP()) by combining functional and relational notation, curried expressions, higher-order functions, patterns, partial applications, non-determinism, lazy evaluation, logical variables, types, domain variables, constraint composition, and finite domain constraints. We describe the syntax of the language, its type discipline, and its declarative and operational semantics. We also describe , an implementation for CFLP(), and a comparison of our approach with respect to CLP() from a programming point of view, showing the new features we introduce. And, finally, we show a performance analysis which demonstrates that our implementation is competitive with respect to existing CLP() systems and that clearly outperforms the closer approach to CFLP().

Type
Regular Papers
Copyright
Copyright © Cambridge University Press 2007

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