Comments (3)
RustanLeino
commented on July 29, 2024
1
A way to write the ordering requirements today is to quantify only over the elements of the array. For example,
forall x :: x in a[..] ==> compare(x, x) // reflexivityfrom libraries.
cpitclaudel
commented on July 29, 2024
1
I'd recommend implementing Musser's Introspective Sort,
Or https://en.wikipedia.org/wiki/Timsort , which historically had a bug that was found using formal methods ^^
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robin-aws
commented on July 29, 2024
We have https://github.com/dafny-lang/libraries/blob/master/src/Collections/Sequences/MergeSort.dfy now, and #54 as a request for something more efficient, so we can close this.
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Related Issues (20)
- Request: ordered maps HOT 1
- Request: connecting Unicode logic to the string type HOT 1
- Request: LemmaUniqueMaximum as analagous to LemmaUniqueMinimum
- Ensure `src` libraries in sync with `src/dafny` libraries, deprecate the former
- Get JSON to work on Java HOT 1
- Additions for JSON
- Add MapWithResult for maps
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- forall statement with no bound variables is deprecated in `ModInternals` HOT 1
- Request (I/O): AppendBytesToFile to complement WriteBytesToFile
- Request: append-to-file support in FileIO library HOT 1
- Readme.md needs code duplication explanation HOT 1
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- Top-level `Dafny` namespace collides with Dafny runtime HOT 2
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