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CodeQL library for Java/Kotlin
codeql/java-all 9.0.4 (changelog, source)
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Predicate ModulusAnalysis::exprModulus

Holds if e is equal to b + val modulo mod.

There are two cases for the modulus:

  • mod = 0: The equality e = b + val is an ordinary equality.
  • mod > 1: val lies within the range [0 .. mod-1].

Import path

import codeql.rangeanalysis.ModulusAnalysis
predicate exprModulus(Expr e, SemBound b, int val, int mod)