gcc/testsuite/g++.dg/ubsan/null-2.C

   1 // Limit this to known non-strict alignment targets.
   2 // { dg-do run { target { i?86-*-linux* x86_64-*-linux* } } }
   3 // { dg-options "-fsanitize=null -Wall -Wno-unused-variable -std=c++11" }
   4
   5 #include <new>
   6
   7 struct U
   8 {
   9   int a;
  10   void foo () {}
  11 };
  12 struct V
  13 {
  14   V () {};
  15   ~V () {};
  16   int a;
  17   void foo () {}
  18   static void bar () {}
  19 };
  20 struct S { long int l; char buf[1 + sizeof (U) + 2 * sizeof (V)]; } s;
  21
  22 int
  23 main (void)
  24 {
  25   U *p = 0;
  26   p->foo ();
  27   char *q = 0;
  28   V *u = new (q) V;
  29   u->~V ();
  30   V *v = new (q) V;
  31   v->foo ();
  32   v->bar ();    // We don't instrument this right now.
  33   v->~V ();
  34 }
  35
  36 // { dg-output "\.C:26:\[0-9]*:\[\^\n\r]*member call on null pointer of type 'struct U'.*" }
  37 // { dg-output "\.C:29:\[0-9]*:\[\^\n\r]*member call on null pointer of type 'struct V'.*" }
  38 // { dg-output "\.C:31:\[0-9]*:\[\^\n\r]*member call on null pointer of type 'struct V'.*" }
  39 // { dg-output "\.C:33:\[0-9]*:\[\^\n\r]*member call on null pointer of type 'struct V'" }