blob: 1a02c195b7cb636b9b4eae04093d777df098d9da (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
-- { dg-do run }
-- { dg-options "-gnatws" }
with Ada.Unchecked_Conversion;
procedure Unchecked_Convert1 is
type Byte is mod 2**8;
type Stream is array (Natural range <>) of Byte;
type Rec is record
I1, I2 : Integer;
end record;
function Do_Sum (R : Rec) return Integer is
begin
return R.I1 + R.I2;
end;
function Sum (S : Stream) return Integer is
subtype Chunk is Stream (1 .. Rec'Size / 8);
function To_Chunk is new Ada.Unchecked_Conversion (Chunk, Rec);
begin
return Do_Sum (To_Chunk (S(S'First .. S'First + Rec'Size / 8 - 1)));
end;
A : Stream (1..9) := (others => 0);
I : Integer;
begin
A (9) := 1;
I := Sum (A(1..8));
end;
|
