From: Evans@TL-20B.ARPA ("Art Evans")
Subject: static array types
Date: Fri, 26-Jun-87 13:37:19 EDT [thread overview]
Date: Fri Jun 26 13:37:19 1987
Message-ID: <8706262216.AA21706@ucbvax.Berkeley.EDU> (raw)
Ada never permits an array type to be static. This fact follows from
the third sentence of 4.9(11).
I see no reason why a type such as
type T is array(1..2) of integer;
should not be considered static. In particular, I find it reasonable
that an array type be considered static if both of the following
requirements are met:
All indices must be static ranges; and
the array element type must be static.
(A similar rule can be developed for record types.) If such a type is
static, it should then follow that 'size of such a type (or an object of
such a type) should be static.
This problem bit us when we tried to use the size of an array in a rep
spec, where a static value is required.
Art Evans
Tartan Labs
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