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[Bug c++/20019] incorrect overflow warning
- From: "neil at daikokuya dot co dot uk" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Feb 2005 11:34:35 -0000
- Subject: [Bug c++/20019] incorrect overflow warning
- References: <20050217025913.20019.igodard@pacbell.net>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From neil at daikokuya dot co dot uk 2005-02-17 11:34 -------
Subject: Re: incorrect overflow warning
pinskia at gcc dot gnu dot org wrote:-
>
> ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-17 03:14 -------
> No the warning is correct as char on a lot of targets is signed by default so promoting (char)0x80 to int
> will give 0xFFFFFF80.
This explanation just doesn't make sense.
What should get a warning is the assignment of 0x80 to a char.
Neil.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20019