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Felicity Chapman
2020-03-04 14:18:24 +00:00
parent 427b440389
commit 4a415d8ad6
5 changed files with 6 additions and 8 deletions
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docs/language/ql-training/cpp/bad-overflow-guard.rst
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@@ -141,7 +141,7 @@ Let’s look for overflow guards of the form ``v + b < v``, using the classes
.. note::
- When performing `variant analysis <https://semmle.com/variant-analysis>`__, it is usually helpful to write a simple query that finds the simple syntactic pattern, before trying to go on to describe the cases where it goes wrong.
- When performing variant analysis, it is usually helpful to write a simple query that finds the simple syntactic pattern, before trying to go on to describe the cases where it goes wrong.
- In this case, we start by looking for all the *overflow* checks, before trying to refine the query to find all *bad overflow* checks.
- The ``select`` clause defines what this query is looking for: