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From: bobduff@world.std.com (Robert A Duff)
Subject: Re: Syntax question
Message-ID: <D5A7rt.E9I@world.std.com>
Keywords: help syntax
Organization: The World Public Access UNIX, Brookline, MA
References: <3jrt1m$9rk@erinews.ericsson.se>
Date: Sat, 11 Mar 1995 15:16:41 GMT
Date: 1995-03-11T15:16:41+00:00
List-Id: <comp.lang.ada>

In article <3jrt1m$9rk@erinews.ericsson.se>,
Geoffrey Hollingworth <etlghh@garbo.ericsson.se> wrote:
>When binding formal parameters with actual parameters the '=>'
>operator is used, irrespective of whether the formal parameter
>is declared as IN, INOUT or OUT.  Is there a reason for this ?
>If I proposed an alternative syntax where "=>" indicated the FP
>was an IN parameter, "<=" to indicate an OUT parameter and "<=>"
>to indicate an INOUT.

Yeah, something like that might be nice.  In fact, I believe an early
version of Ada (or its precursor Green) did something like that.  I
don't know why they got rid of it.

However, note that you don't want to use "<=", because that already
means "less than or equal".

- Bob