31 Jan
2003
31 Jan
'03
9:46 p.m.
Ingvar Marny wrote:
program test;
type t1 = packed record item1 : byte; item2: byte; item3: byte; end; t2 = packed array [0..0] of t1;
begin writeln ('SizeOf (t1): ', SizeOf (t1)); writeln ('SizeOf (t2): ', SizeOf (t2)); readln; end.
Output of program:
SizeOf (t1): 3 SizeOf (t2): 4
Could anybody tell me - why?
Packed arrays are currently accessed in half-word entities (i.e., 16 bits on most systems). This might seem unlogical, but the packing is only done within the array, not outside.
I might change it sometime because it also causes other (small) problems, but it's not trivial to do ...
Frank
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Frank Heckenbach, frank@g-n-u.de, http://fjf.gnu.de/, 7977168E
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