gcc/testsuite/gdc.test/runnable_cxx/test24292.d

   1 // EXTRA_CPP_SOURCES: test24292.cpp
   2
   3 extern(C++) struct List(T)
   4 {
   5     // Any of the following static ifs can trigger the problem.
   6     static if (T.sizeof > 4) {}
   7     static if (__traits(isZeroInit, T)) {}
   8     static if (__traits(isPOD, T)) {}
   9
  10     T* begin;
  11 }
  12
  13 extern(C++) struct StructWithDestructor
  14 {
  15     ~this();
  16
  17     alias L = List!StructWithDestructor;
  18     int i;
  19 }
  20
  21 extern(C++) struct StructWithCopyCtor
  22 {
  23     this(ref const(StructWithCopyCtor));
  24
  25     alias L = List!StructWithCopyCtor;
  26     int i;
  27 }
  28
  29 extern(D) struct StructWithPostblit
  30 {
  31     this(this) {}
  32
  33     alias L = List!StructWithPostblit;
  34     int i;
  35 }
  36
  37 static assert(!__traits(isPOD, StructWithDestructor));
  38 static assert(!__traits(isPOD, StructWithCopyCtor));
  39 static assert(!__traits(isPOD, StructWithPostblit));
  40
  41 extern(C++) StructWithDestructor getStructWithDestructor();
  42 extern(C++) StructWithCopyCtor getStructWithCopyCtor();
  43
  44 void main()
  45 {
  46     StructWithDestructor structWithDestructor = getStructWithDestructor();
  47     assert(structWithDestructor.i == 12345);
  48     StructWithCopyCtor structWithCopyCtor = getStructWithCopyCtor();
  49     assert(structWithCopyCtor.i == 54321);
  50 }