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Re: PR 40752: -Wconversion generates false warnings for operands not larger than target type

From: "Joseph S. Myers" <joseph at codesourcery dot com>
To: Manuel López-Ibáñez <lopezibanez at gmail dot com>
Cc: Paolo Carlini <paolo dot carlini at oracle dot com>, Gcc Patch List <gcc-patches at gcc dot gnu dot org>, Ian Lance Taylor <iant at google dot com>
Date: Wed, 9 May 2012 13:54:11 +0000 (UTC)
Subject: Re: PR 40752: -Wconversion generates false warnings for operands not larger than target type
References: <6c33472e0907211554o743845e6p3d05114274c526ab@mail.gmail.com> <6c33472e0908101650v5a1b829cp835c0f816e6cd8da@mail.gmail.com> <Pine.LNX.4.64.0908102358530.2744@digraph.polyomino.org.uk> <AANLkTikFxusN2nZhfwvMzkndp42ebvu1_ghBqcCA0I_6@mail.gmail.com> <4FA7E1CA.3040604@oracle.com> <CAESRpQALycXE5TSd+cwZn+j8qyHZ4pukx=nxDVFczBPqxguyvA@mail.gmail.com> <4FAA6F6F.7010903@oracle.com> <CAESRpQB0FVDhQA1f=1tmM+gttP8G6tXNm1BHafeGuxPycK3hZw@mail.gmail.com>

On Wed, 9 May 2012, Manuel López-Ibáñez wrote:

> That is,
> 
> cases where you not are able to make a deduction about ranges => the
> warnings are appropriate and should be disabled only under a separate
> option.
> 
> cases where you are able to deduce the ranges => warning is not appropriate

Yes, that's correct.

-- 
Joseph S. Myers
joseph@codesourcery.com

Follow-Ups:
- Re: PR 40752: -Wconversion generates false warnings for operands not larger than target type
  - From: Paolo Carlini

References:
- Re: PR 40752: -Wconversion generates false warnings for operands not larger than target type
  - From: Paolo Carlini
- Re: PR 40752: -Wconversion generates false warnings for operands not larger than target type
  - From: Manuel López-Ibáñez
- Re: PR 40752: -Wconversion generates false warnings for operands not larger than target type
  - From: Paolo Carlini
- Re: PR 40752: -Wconversion generates false warnings for operands not larger than target type
  - From: Manuel López-Ibáñez

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