test/CodeGenCXX/ptr-to-datamember.cpp

   1 // RUN: %clang_cc1 -emit-llvm -o - %s
   2
   3 extern "C" int printf(...);
   4
   5 struct F {
   6   F() : iF(1), fF(2.0) {}
   7   int iF;
   8   float fF;
   9 };
  10
  11 struct V {
  12   double d;
  13   int iV;
  14 };
  15
  16 struct B  : virtual V{
  17   double d;
  18   int iB;
  19 };
  20
  21 struct B1  : virtual V{
  22   double d;
  23   int iB1;
  24 };
  25
  26 class A  : public B, public B1 {
  27 public:
  28   A() : f(1.0), d(2.0), Ai(3) {}
  29   float f;
  30   double d;
  31   int Ai;
  32   F Af;
  33 };
  34
  35 template <typename T> struct TT {
  36   int T::t::*pti;
  37 };
  38
  39 struct I {
  40   typedef I t;
  41   int x;
  42 };
  43
  44 void pr(const F& b) {
  45   printf(" %d %f\n", b.iF, b.fF);
  46 }
  47
  48 void test_aggr_pdata(A& a1) {
  49   F A::* af = &A::Af;
  50   pr(a1.*af);
  51
  52   (a1.*af).iF = 100;
  53   (a1.*af).fF = 200.00;
  54   printf(" %d %f\n", (a1.*af).iF, (a1.*af).fF);
  55   pr(a1.*af);
  56
  57   (a1.*af).iF++;
  58   (a1.*af).fF--;
  59   --(a1.*af).fF;
  60   pr(a1.*af);
  61 }
  62
  63 void test_aggr_pdata_1(A* pa) {
  64   F A::* af = &A::Af;
  65   pr(pa->*af);
  66
  67   (pa->*af).iF = 100;
  68   (pa->*af).fF = 200.00;
  69   printf(" %d %f\n", (pa->*af).iF, (pa->*af).fF);
  70   pr(pa->*af);
  71
  72   (pa->*af).iF++;
  73   (pa->*af).fF--;
  74   --(pa->*af).fF;
  75   pr(pa->*af);
  76 }
  77
  78 int main()
  79 {
  80   A a1;
  81   TT<I> tt;
  82   I i;
  83   int A::* pa = &A::Ai;
  84   float A::* pf = &A::f;
  85   double A::* pd = &A::d;
  86   tt.pti = &I::x;
  87   printf("%d %d %d\n", &A::Ai, &A::f, &A::d);
  88   printf("%d\n", &A::B::iB);
  89   printf("%d\n", &A::B1::iB1);
  90   printf("%d\n", &A::f);
  91   printf("%d\n", &A::B::iV);
  92   printf("%d\n", &A::B1::iV);
  93   printf("%d\n", &A::B::V::iV);
  94   printf("%d\n", &A::B1::V::iV);
  95   printf("%d, %f, %f  \n", a1.*pa, a1.*pf, a1.*pd);
  96   printf("%d\n", i.*tt.pti);
  97   test_aggr_pdata(a1);
  98   test_aggr_pdata_1(&a1);
  99 }