clang/test/Analysis/null-deref-path-notes.cpp

   1 // RUN: %clang_analyze_cc1 -w -x c++ -analyzer-checker=core -analyzer-output=text -verify %s
   2
   3 namespace pr34731 {
   4 int b;
   5 class c {
   6   class B {
   7    public:
   8     double ***d;
   9     B();
  10   };
  11   void e(double **, int);
  12   void f(B &, int &);
  13 };
  14
  15 // Properly track the null pointer in the array field back to the default
  16 // constructor of 'h'.
  17 void c::f(B &g, int &i) {
  18   e(g.d[9], i); // expected-warning{{Array access (via field 'd') results in a null pointer dereference}}
  19                 // expected-note@-1{{Array access (via field 'd') results in a null pointer dereference}}
  20   B h, a; // expected-note{{Value assigned to 'h.d'}}
  21   a.d == __null; // expected-note{{Assuming the condition is true}}
  22   a.d != h.d; // expected-note{{Assuming 'a.d' is equal to 'h.d'}}
  23   f(h, b); // expected-note{{Calling 'c::f'}}
  24 }
  25 }