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C++: Add more detail to change notes for libraries

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Jonas Jensen
2018-11-30 14:29:08 +01:00
parent b793807af5
commit 9532ee5177
1 changed files with 4 additions and 3 deletions
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change-notes/1.19/analysis-cpp.md
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@@ -43,6 +43,7 @@
## Changes to QL libraries
* Added a hash consing library for structural comparison of expressions.
* `getBufferSize` now detects variable size structs more reliably.
* Buffer.qll now treats arrays of zero size as a special case.
* Added a hash consing library (`semmle.code.cpp.valuenumbering.HashCons`) for structural comparison of expressions. Unlike the existing library for global value numbering, this library implements a pure syntactic comparison of expressions and will equate expressions even if they may not compute the same value.
* The `Buffer.qll` library has more conservative treatment of arrays embedded in structs. This reduces false positives in a number of security queries, especially `cpp/overflow-buffer`.
* Pre-C99 encodings of _flexible array members_ are recognized more reliably.
* Arrays of zero size are now treated as a special case.