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-- { dg-do compile }
package Size_Clause1 is
-- The record inherits the alignment of Integer, which is 4, so
-- the real size is 64 instead of 40. That's OK, as long as the
-- size of a component of type R1 in a packed record is 40.
type R1 is record
I : Integer;
B : Boolean;
end record;
for R1'Size use 40;
type S1 is record
rr : R1; -- size must be 40
end record;
pragma Pack(S1);
-- The record is explicitly given alignment 1 so its real type is 40 too.
-- The size of a component of type R2 in a packed record is naturally 40.
type R2 is record
I : Integer;
B : Boolean;
end record;
for R2'Size use 40;
for R2'Alignment use 1;
type S2 is record
rr : R2; -- size must be 40
end record;
pragma Pack(S2);
-- The record is explicitly given alignment 4 so its real type is 64.
-- That's OK, as long as the size of a component of type R3 in a packed
-- record is 40.
type R3 is record
I : Integer;
B : Boolean;
end record;
for R3'Size use 40;
for R3'Alignment use 4;
type S3 is record
rr : R3; -- size must be 40
end record;
pragma Pack(S3);
end Size_Clause1;
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