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Formal C semantics: CompCert and the C standard

Abstract : We discuss the difference between a formal semantics of the C standard, and a formal semantics of an implementation of C that satisfies the C standard. In this context we extend the CompCert semantics with end-of-array pointers and the possibility to byte-wise copy objects. This is a first and necessary step towards proving that the CompCert semantics refines the formal version of the C standard that is being developed in the Formalin project in Nijmegen.
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Contributor : Xavier Leroy Connect in order to contact the contributor
Submitted on : Monday, April 21, 2014 - 5:04:41 PM
Last modification on : Friday, December 2, 2022 - 3:53:22 AM
Long-term archiving on: : Monday, April 10, 2017 - 4:01:53 PM


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Robbert Krebbers, Xavier Leroy, Freek Wiedijk. Formal C semantics: CompCert and the C standard. ITP 2014: Fifth conference on Interactive Theorem Proving, Jul 2014, Vienna, Austria. pp.543-548, ⟨10.1007/978-3-319-08970-6_36⟩. ⟨hal-00981212⟩



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