clang/test/Analysis/method-call-intra-p.cpp

   1 // RUN: %clang_analyze_cc1 -analyzer-checker=core -verify %s
   2 // expected-no-diagnostics
   3
   4 // Intra-procedural C++ tests.
   5
   6 // Test relaxing function call arguments invalidation to be aware of const
   7 // arguments.
   8 struct InvalidateArgs {
   9   void ttt(const int &nptr);
  10   virtual void vttt(const int *nptr);
  11 };
  12 struct ChildOfInvalidateArgs: public InvalidateArgs {
  13   virtual void vttt(const int *nptr);
  14 };
  15 void declarationFun(int x) {
  16   InvalidateArgs t;
  17   x = 3;
  18   int y = x + 1;
  19   int *p = 0;
  20   t.ttt(y);
  21   if (x == y)
  22       y = *p; // no-warning
  23 }
  24 void virtualFun(int x) {
  25   ChildOfInvalidateArgs t;
  26   InvalidateArgs *pt = &t;
  27   x = 3;
  28   int y = x + 1;
  29   int *p = 0;
  30   pt->vttt(&y);
  31   if (x == y)
  32       y = *p; // no-warning
  33 }