gcc/testsuite/gnat.dg/address_conversion.adb

   1 -- { dg-do run }
   2 -- { dg-options "-O2" }
   3
   4 with System.Address_To_Access_Conversions;
   5
   6 procedure address_conversion is
   7
   8    type Integer_type1 is new Integer;
   9    type Integer_type2 is new Integer;
  10
  11    package AA is new System.Address_To_Access_Conversions (Integer_type1);
  12
  13    K1 : Integer_type1;
  14    K2 : Integer_type2;
  15
  16 begin
  17    K1 := 1;
  18    K2 := 2;
  19
  20    AA.To_Pointer(K2'Address).all := K1;
  21    if K2 /= 1 then
  22       raise Program_Error;
  23    end if;
  24 end;