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Extended static checking (ESC) is a collective name in computer science for a range of techniques for statically checking the correctness of various program constraints. ESC can be thought of as an extended form of type checking. As with type checking, ESC is performed automatically at compile time. This distinguishes it from more general approaches to the formal verification of software, which typically rely on human-generated proofs. Furthermore, it promotes practicality over soundness, in that it aims to dramatically reduce the number of false positives at the cost of introducing some false negatives. ESC can identify a range of errors which are currently outside the scope of a type checker, including division by zero, array out of bounds, integer overflow and null dereferences.
Join-patterns provides a way to write concurrent, parallel and distributed computer programs by message passing. Compared to the use of threads and locks, this is a high level programming model using communication constructs model to abstract the complexity of concurrent environment and to allow scalability. Its focus is on the execution of a chord between messages atomically consumed from a group of channels.
Gradual typing is a type system in which some variables and expressions may be given types and the correctness of the typing is checked at compile time and some expressions may be left untyped and eventual type errors are reported at runtime. Gradual typing allows software developers to choose either type paradigm as appropriate, from within a single language. In many cases gradual typing is added to an existing dynamic language, creating a derived language allowing but not requiring static typing to be used. In some cases a language uses gradual typing from the start.
David Lansing Dill is a computer scientist and academic noted for contributions to formal verification, electronic voting security, and computational systems biology.
References
- ↑ Hamez, Alexandre; Kordon, Fabrice; Thierry-Mieg, Yann (2007). "IibDMC: A Library to Operate Efficient Distributed Model Checking". 2007 IEEE International Parallel and Distributed Processing Symposium. pp. 1–8. doi:10.1109/IPDPS.2007.370647. ISBN 978-1-4244-0909-9. S2CID 12586847.
- ↑ Hamez, Alexandre; Kordon, Fabrice; Thierry-Mieg, Yann; Legond-Aubry, Fabrice (2007). "DMCG: A Distributed Symbolic Model Checker Based on GreatSPN". Petri Nets and Other Models of Concurrency – ICATPN 2007. Lecture Notes in Computer Science. Vol. 4546. pp. 495–504. doi:10.1007/978-3-540-73094-1_29. ISBN 978-3-540-73093-4.
- ↑ Accueil LIP6
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