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|Abstract:||We demonstrate tools and methods for proofs about the correctness and numerical accuracy of C programs. The tools are foundational, in that they are connected to formal semantic specifications of the C operational semantics and of the IEEE 754 floating-point format. The tools are modular, in that the reasoning about C programming can be done quite separately from the reasoning about numerical correctness and numerical accuracy. The tools are general, in that they accommodate almost the entire C language (with pointer data structures, function pointers, control flow, etc.) and applied mathematics (reasoned about in a general-purpose logic and proof assistant with substantial libraries for mathematical reasoning). We demonstrate on a simple Newton's-method square root function.|
|Citation:||Appel, Andrew W., Yves Bertot. "C floating-point proofs layered with VST and Flocq." Journal of Formalized Reasoning 13, no. 1 (2020): pp. 1-16. doi:10.6092/issn.1972-5787/11442|
|Pages:||1 - 16|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||Journal of Formalized Reasoning|
|Version:||Final published version. Article is made available in OAR by the publisher's permission or policy.|
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