gcc/testsuite/gdc.test/compilable/test9766.d

   1 // PERMUTE_ARGS:
   2
   3 size_t getAlign9766(size_t n) { return n; }
   4
   5 struct S9766
   6 {
   7 align(getAlign9766(1)):
   8     ubyte[5] pad1;
   9     ubyte var1;
  10
  11 align(getAlign9766(2)):
  12     ubyte[5] pad2;
  13     ubyte var2;
  14
  15 align(getAlign9766(4)):
  16     ubyte[5] pad3;
  17     ubyte var3;
  18
  19 align(getAlign9766(8)):
  20     ubyte[5] pad4;
  21     ubyte var4;
  22 }
  23
  24 static assert(S9766.pad1.offsetof == 0);
  25 static assert(S9766.var1.offsetof == 5);
  26
  27 static assert(S9766.pad2.offsetof == 6);
  28 static assert(S9766.var2.offsetof == 12);
  29
  30 static assert(S9766.pad3.offsetof == 16);
  31 static assert(S9766.var3.offsetof == 24);
  32
  33 static assert(S9766.pad4.offsetof == 32);
  34 static assert(S9766.var4.offsetof == 40);
  35
  36 union U9766
  37 {
  38     struct
  39     {
  40     align(getAlign9766(1)):
  41         ubyte[5] pad1;
  42         ubyte var1;
  43
  44     align(getAlign9766(2)):
  45         ubyte[5] pad2;
  46         ubyte var2;
  47
  48     align(getAlign9766(4)):
  49         ubyte[5] pad3;
  50         ubyte var3;
  51
  52     align(getAlign9766(8)):
  53         ubyte[5] pad4;
  54         ubyte var4;
  55     }
  56 }
  57
  58 static assert(U9766.pad1.offsetof == 0);
  59 static assert(U9766.var1.offsetof == 5);
  60
  61 static assert(U9766.pad2.offsetof == 6);
  62 static assert(U9766.var2.offsetof == 12);
  63
  64 static assert(U9766.pad3.offsetof == 16);
  65 static assert(U9766.var3.offsetof == 24);
  66
  67 static assert(U9766.pad4.offsetof == 32);
  68 static assert(U9766.var4.offsetof == 40);
  69
  70 struct TestMaxAlign
  71 {
  72 align(1u << 31):
  73     ubyte a;
  74     ubyte b;
  75 }
  76
  77 static assert(TestMaxAlign.b.offsetof == 2147483648u);