gcc/testsuite/gnat.dg/test_8bitlong_overflow.adb

   1 -- { dg-do run }
   2 -- { dg-options "-gnato" }
   3
   4 procedure Test_8bitlong_Overflow is
   5
   6    pragma Unsuppress (Overflow_Check);
   7    generic
   8        type T is range <>;
   9    package G is
  10       LO   : T := T'first;
  11       ONE  : T := T(1);
  12
  13       type A2 is array(T range <>) of T;
  14       subtype SA2 is A2(LO..4*ONE);
  15
  16       ARRAY_AGGR : SA2 := SA2'(others=>LO + 1);
  17
  18       POS_1   : T := T'pos(LO*ONE);
  19    end;
  20
  21    type T is new LONG_INTEGER range -1..10;
  22    for T'size use 8;
  23
  24    package P is new G (T);
  25
  26 begin
  27    null;
  28 end;