Predicate linearAccess
Holds if expr is equivalent to p*v + q, where p is a non-zero
number. This takes into account the associativity, commutativity and
distributivity of arithmetic operations.
Import path
import semmle.code.cpp.rangeanalysis.RangeAnalysisUtilspredicate linearAccess(Expr expr, VariableAccess v, float p, float q)