gcc/testsuite/gdc.test/fail_compilation/ice12574.d

   1 /*
   2 TEST_OUTPUT:
   3 ---
   4 fail_compilation/ice12574.d(40): Error: tuple index 2 exceeds length 2
   5 fail_compilation/ice12574.d(53): Error: template instance ice12574.reduce!("a", "a").reduce!(Tuple!(int, int, int)) error instantiating
   6 ---
   7 */
   8
   9 struct Tuple(T...)
  10 {
  11     alias Types = T;
  12     T field;
  13     alias field this;
  14 }
  15 Tuple!A tuple(A...)(A args) { return typeof(return)(args); }
  16
  17 template binaryFun(alias fun)
  18 {
  19     static if (is(typeof(fun) : string))
  20     {
  21         auto binaryFun(ElementType1, ElementType2)(auto ref ElementType1 __a, auto ref ElementType2 __b)
  22         {
  23             mixin("alias "~"a"~" = __a ;");
  24             mixin("alias "~"b"~" = __b ;");
  25             return mixin(fun);
  26         }
  27     }
  28     else
  29     {
  30         alias binaryFun = fun;
  31     }
  32 }
  33
  34 template reduce(fun...)
  35 {
  36     auto reduce(Seed)(Seed result)
  37     {
  38         foreach (i, Unused; Seed.Types)
  39         {
  40            result[i] = binaryFun!(fun[i])(1, 1); // here
  41         }
  42         return result;
  43     }
  44 }
  45
  46 int foo(int value)
  47 {
  48     return value;
  49 }
  50
  51 void main()
  52 {
  53     reduce!("a", "a")(tuple(1, 1, 1));
  54 }