gcc/testsuite/gdc.dg/torture/pr94777b.d

   1 // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94777
   2 // { dg-additional-options "-fmain -funittest" }
   3 // { dg-do run }
   4 // { dg-skip-if "needs gcc/config.d" { ! d_runtime } }
   5
   6 void testVariadic(T)(int nargs, ...)
   7 {
   8     import core.stdc.stdarg;
   9     foreach(i; 0 .. nargs)
  10     {
  11         auto arg = va_arg!T(_argptr);
  12         static if (__traits(compiles, arg.value))
  13         {
  14             assert(arg.value == i);
  15         }
  16         else static if (__traits(compiles, arg[0]))
  17         {
  18             foreach (value; arg)
  19                 assert(value == i);
  20         }
  21         else
  22         {
  23             assert(arg == T.init);
  24         }
  25     }
  26 }
  27
  28 /******************************************/
  29
  30 struct Destructor
  31 {
  32     static int count = 0;
  33     int value;
  34     ~this() { count++; }
  35 }
  36
  37 unittest
  38 {
  39     {
  40         auto a0 = Destructor(0);
  41         auto a1 = Destructor(1);
  42         auto a2 = Destructor(2);
  43         static assert(!__traits(compiles, testVariadic!Destructor(3, a0, a1, a2)));
  44     }
  45     assert(Destructor.count == 3);
  46 }