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Note that a unary plus does not change the sign of a value...

Unlike a unary minus.

Charles

On Tue, Mar 31, 2015 at 2:21 PM, Roger Harman <roger.harman@xxxxxxxxxxx>
wrote:

Ditto. If I wanted to ensure positive number, I would use abs() in C or
%abs() in RPG.


Roger Harman
COMMON Certified Application Developer – ILE RPG on IBM i on Power
OCEAN User Group
<http://www.ocean400.org>


----------------------------------------
Subject: Re: RPG Compiler (and RDi Syntax Checker) weirdness
From: mmurphy@xxxxxxxxxxxxxxx
To: rpg400-l@xxxxxxxxxxxx
Date: Tue, 31 Mar 2015 13:36:57 -0400

I've never seen anywhere I would need a unary plus even when programming
in C.

Mark Murphy
STAR BASE Consulting, Inc.
mmurphy@xxxxxxxxxxxxxxx


-----John Yeung <gallium.arsenide@xxxxxxxxx> wrote: -----
To: "RPG programming on the IBM i (AS/400 and iSeries)" <
rpg400-l@xxxxxxxxxxxx>
From: John Yeung <gallium.arsenide@xxxxxxxxx>
Date: 03/31/2015 12:20PM
Subject: Re: RPG Compiler (and RDi Syntax Checker) weirdness

On Tue, Mar 31, 2015 at 11:17 AM, Mark Murphy/STAR BASE Consulting
Inc. <mmurphy@xxxxxxxxxxxxxxx> wrote:
Yea, when John wrote that, it made sense, just looks strange.

Unary plus is indeed strange in most everyday contexts, especially in
business logic. In a language like RPG, the most compelling rationale
for even having it in the language is for symmetry with the unary
minus. (If you're thinking that sounds pretty weak, I agree!)

In other languages, unary plus is not *as* useless, though still not
particularly useful. You have to be doing something fairly exotic for
it to actually be important.

John Y.
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