Ciao (programming language)
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| Paradigm | Logic, functional, modular, object-oriented |
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| First appeared | 1984 |
| OS | Cross-platform (Unix, Mac OS X, Windows) |
| License | GPL, LGPL |
| Website | www |
| Influenced by | |
| Prolog | |
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.
Ciao is built on a kernel with an extensible modular design which allows both restricting and extending the language — it can be seen as a language building language. These restrictions and extensions can be activated separately on each program module so that several extensions can coexist in the same application for different modules.
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