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Message from discussion warning: comparison of unsigned expression < 0 is always false
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Art Werschulz  
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 More options Nov 10 2012, 6:43 pm
From: Art Werschulz <a...@comcast.net>
Date: Sat, 10 Nov 2012 18:43:37 -0500
Local: Sat, Nov 10 2012 6:43 pm
Subject: Re: warning: comparison of unsigned expression < 0 is always false
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Hi.

On Nov 9, 2012, at 5:09 PM, Alec Clews <aleccl...@gmail.com> wrote:

> I'm getting the following warnings

> ../std_lib_facilities.h:112:8: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
>                 if (i<0||size()<=i) throw Range_error(i);
>                     ~^~
> ../std_lib_facilities.h:118:8: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
>                 if (i<0||size()<=i) throw Range_error(i);
>                     ~^~

> Which if you look at the code make perfect sense as i is declared unsigned. Is there some reason it's written that way or can I remove the offending test?

You can remove the test.

Art Werschulz (8-{)}   "Metaphors be with you."  -- bumper sticker
GCS/M (GAT): d? -p+ c++ l u+(-) e--- m* s n+ h f g+ w+ t++ r- y?
Internet: agw STRUDEL comcast.net


 
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