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From: kilgallen@eisner.decus.org (Larry Kilgallen)
Subject: Re: Are unconstrained arrays passed by references?
Date: 1999/08/11
Message-ID: <1999Aug11.073146.1@eisner>#1/1
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References: <7oomct$t93$1@nnrp1.deja.com> <wcc907jhl4c.fsf@world.std.com>
 <7opbch$bca$1@nnrp1.deja.com> <37B071C8.FF759493@averstar.com>
 <7oq77c$1et$1@nnrp1.deja.com>
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Newsgroups: comp.lang.ada
Date: 1999-08-11T00:00:00+00:00
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In article <7oq77c$1et$1@nnrp1.deja.com>, Robert Dewar <robert_dewar@my-deja.com> writes:
> In article <37B071C8.FF759493@averstar.com>,
>   Tucker Taft <stt@averstar.com> wrote:
>> If the subprogram has convention "C" then you can be sure that
>> arrays are passed by reference.
> 
> I disagree, this is implementation advice only, not a
> requirement of the standard. For example, it would be perfectly
> valid to pass a 32 bit packed array as an int (it would not
> meet the implementation advice, but it would be valid).

Doesn't this depend on the C compiler to which you are
interfacing ?  I know VAX C can accept an array of 9
bytes passed by value (it spreads the bytes across
the registers when running on Alpha).  I presume DEC
C can do the same thing for the sake of compatibility.

The only things I know about C compilers are the ugly things.

Larry Kilgallen