CodeQL library for C/C++

codeql/cpp-all 5.2.0 (changelog, source)

Module CppDataFlow

Import path

import semmle.code.cpp.ir.dataflow.internal.DataFlowImplSpecific

Imports

Private
Public

Predicates

defaultFieldFlowBranchLimit	Gets the default value for the `fieldFlowBranchLimit`
exprNode	Gets the node corresponding to `e`.

Aliases

getAdditionalFlowIntoCallNodeTerm	Gets an additional term that is added to the `join` and `branch` computations to reflect an additional forward or backwards branching factor that is not taken into account when calculating the (virtual) dispatch cost.
getSecondLevelScope	Gets the second-level scope containing the node `n`, if any.
mayBenefitFromCallContext	Holds if the set of viable implementations that can be called by `call` might be improved by knowing the call context.
neverSkipInPathGraph
validParameterAliasStep	Holds if the data-flow step from `node1` to `node2` can be used to determine where side-effects may return from a callable. For C/C++, this means that the step from `node1` to `node2` not only preserves the value, but also preserves the identity of the value. For example, the assignment to `x` that reads the value of `p` in `cpp int p = ... int x = p;` does not preserve the identity of `p`.
viableImplInCallContext	Gets a viable dispatch target of `call` in the context `ctx`. This is restricted to those `call`s for which a context might make a difference.