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From: Luke A. Guest <laguest@archeia.com>
Newsgroups: comp.lang.ada
Subject: Re: some trivial questions?
Date: Wed, 1 Nov 2017 21:30:15 +0000
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<tclwarrior@gmail.com> wrote:
> Why in ada, there is a separation between functions and procedures?
> Is there any real value in this? 

In maths a function returns something, well it maps one set onto another,
but you get the idea. A procedure is a bunch of steps that don't return a
value.

Other languages do this too, just not the C ones.