lldb/test/API/lang/cpp/sizeof/main.cpp

   1 struct Empty {};
   2 class EmptyClass {};
   3 class alignas(4) EmptyClassAligned {};
   4 class ClassEmptyMember {
   5   int i[0];
   6 };
   7
   8 struct SingleMember {
   9   int i;
  10 };
  11 class SingleMemberClass {
  12   int i;
  13 };
  14
  15 struct PaddingMember {
  16   int i;
  17   char c;
  18 };
  19 class PaddingMemberClass {
  20   int i;
  21   char c;
  22 };
  23
  24 const unsigned sizeof_empty = sizeof(Empty);
  25 const unsigned sizeof_empty_class = sizeof(EmptyClass);
  26 const unsigned sizeof_empty_class_aligned = sizeof(EmptyClassAligned);
  27 const unsigned sizeof_class_empty_member = sizeof(ClassEmptyMember);
  28 const unsigned sizeof_single = sizeof(SingleMember);
  29 const unsigned sizeof_single_class = sizeof(SingleMemberClass);
  30 const unsigned sizeof_padding = sizeof(PaddingMember);
  31 const unsigned sizeof_padding_class = sizeof(PaddingMemberClass);
  32
  33 int main() {
  34   Empty empty;
  35   EmptyClass empty_class;
  36   EmptyClassAligned empty_class_aligned;
  37   ClassEmptyMember class_empty_member;
  38   SingleMember single;
  39   SingleMemberClass single_class;
  40   PaddingMember padding;
  41   PaddingMemberClass padding_class;
  42   // Make sure globals are used.
  43   return sizeof_empty + sizeof_empty_class + sizeof_class_empty_member +
  44          sizeof_single + +sizeof_empty_class_aligned + sizeof_single_class +
  45          sizeof_padding + sizeof_padding_class;
  46 }