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
35
36
37
38
39
40
41
42
43
44
45
46
47
|
{ %fail }
{ currently fails under FPC, because parameters to read(ln) have to be }
{ var parameters, and you cannot pass bitpacked record fields and array }
{ elements as var parameters }
{ from gpc tests, original name: bitfields.pas }
{$ifdef fpc}
{$bitpacking on}
{$endif}
Program BitFields;
Var
Foo: packed record
b: 0..63;
a: 0..1;
end { Foo };
r: packed array [ 40..47 ] of 0..1;
F: Text;
begin
assign(f,'bitfields.txt');
rewrite ( F );
writeln ( F, '42' );
writeln ( F, '0' );
writeln ( F, '1' );
with Foo do
begin
reset ( F );
readln ( F, b );
readln ( F, a );
readln ( F, r [ 42 ] );
close ( F );
erase ( F );
if ( b = 42 ) and ( a = 0 ) and ( r [ 42 ] = 1 ) then
writeln ( 'OK' )
else
begin
writeln ( 'failed: ', b, ' ', a, ' ', r [ 42 ] );
halt(1);
end;
end { with };
end.
|