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C++: Add number of bounds test to simple range analysis

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Simon Friis Vindum
2025-10-15 13:32:05 +02:00
parent 7eacd87343
commit 8896a7210b
3 changed files with 4580 additions and 0 deletions
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3
cpp/ql/lib/semmle/code/cpp/rangeanalysis/SimpleRangeAnalysis.qll
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@@ -2140,4 +2140,7 @@ module SimpleRangeAnalysisInternal {
// bound is `typeUpperBound`.
defMightOverflowNegatively(def, v) and result = varMaxVal(v)
}
/** Gets the estimate of the number of bounds for `e`. */
float estimateNrOfBounds(Expr e) { result = BoundsEstimate::nrOfBoundsExpr(e) }
}

4572
cpp/ql/test/library-tests/rangeanalysis/SimpleRangeAnalysis/nrOfBounds.expected Normal file
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5
cpp/ql/test/library-tests/rangeanalysis/SimpleRangeAnalysis/nrOfBounds.ql Normal file
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@@ -0,0 +1,5 @@
import cpp
import semmle.code.cpp.rangeanalysis.SimpleRangeAnalysis
from Expr e
select e, SimpleRangeAnalysisInternal::estimateNrOfBounds(e)