Ciao is a general-purpose programming language which supports logic, constraint, functional, higher-order, and object-oriented programming styles. Its main design objectives are high expressive power, extensibility, safety, reliability, and efficient execution. Ciao provides a full Prolog system (supporting ISO-Prolog), declarative subsets and extensions of Prolog, functional programming (including lazy evaluation), higher-order (with predicate abstractions), constraint programming, and objects, as well as feature terms (records), persistence, several control rules (breadth-first search, iterative deepening, ...), concurrency (threads/engines), distributed execution (agents), and parallel execution. Libraries also support WWW programming, sockets, external interfaces (C, Java, TclTk, relational databases, etc.), etc. More information...
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