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Appeared in Volume 10/2, May 1997
TOY supports functional programming in the style of Gofer or Haskell. Its functional programming features include: polymorphic types, higher order functions, lazy evaluation and infinite data structures. TOY supports pure logic programming, including clausal notation as syntactic sugar for true-valued functions.
Lazy narrowing is achieved by means of a translation of the original program into Prolog. The translation implements a 'demand-driven' narrowing strategy which takes into account how arguments are demanded while reducing an expression.
Other features: (strict) equality and disequality constraint solving, higher order logic computations, nondeterministic functions.
TOY is available from:
http://mozart.mat.ucm.es
TOY requires Sicstus Prolog v3.
For more information, contact:
Francisco J. Lopez-Fraguas
Tel: +34 1 394 4429
Fax: +34 1 394 4607
Email: fraguas@dia.ucm.es
or jaimew@eucmos.sim.ucm.es
or fraguas@eucmax.sim.ucm.es
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