clang/test/SemaCXX/offsetof-0x.cpp

   1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10.0.0 -fsyntax-only -std=c++11 -verify %s -Winvalid-offsetof
   2 // RUN: %clang_cc1 -triple x86_64-apple-darwin10.0.0 -fsyntax-only -std=c++11 -verify %s -Winvalid-offsetof -fexperimental-new-constant-interpreter
   3
   4 struct NonPOD {
   5   virtual void f();
   6   int m;
   7 };
   8
   9 struct P {
  10   NonPOD fieldThatPointsToANonPODType;
  11 };
  12
  13 void f() {
  14   int i = __builtin_offsetof(P, fieldThatPointsToANonPODType.m); // expected-warning{{offset of on non-standard-layout type 'P'}}
  15 }
  16
  17 struct StandardLayout {
  18   int x;
  19   StandardLayout() {}
  20 };
  21 int o = __builtin_offsetof(StandardLayout, x); // no-warning