class AdLint::Exam::CBuiltin::W0027

Public Class Methods

new(phase_ctxt) click to toggle source
Calls superclass method AdLint::Examination::new
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 522
def initialize(phase_ctxt)
  super
  interp = phase_ctxt[:cc1_interpreter]
  interp.on_relational_expr_evaled += T(:check_comparison)
  interp.on_equality_expr_evaled   += T(:check_comparison)
end

Private Instance Methods

check_comparison(expr, lhs_var, rhs_var, *) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 530
def check_comparison(expr, lhs_var, rhs_var, *)
  return if expr.lhs_operand.kind_of?(Cc1::NullConstantSpecifier)
  return if expr.rhs_operand.kind_of?(Cc1::NullConstantSpecifier)

  if lhs_var.type.pointer? || rhs_var.type.pointer?
    W(expr.location)
  end
end