From: Ricardo Scop <rscop@matrix.com.br>
To: linuxppc-embedded@ozlabs.org
Cc: DI BACCO ANTONIO - technolabs <Antonio.DiBacco@technolabs.it>
Subject: Re: ppc_8xx-gcc from eldk strange behaviour
Date: Wed, 29 Aug 2007 01:50:46 -0300 [thread overview]
Message-ID: <200708290150.46317.rscop@matrix.com.br> (raw)
In-Reply-To: <F1F6EC0C8B75034F9E3A79FC85122E8E2649AF@aquib01a>
Hi, Antonio
On Tuesday 28 August 2007 15:56, DI BACCO ANTONIO - technolabs wrote:
> Consider the following C code snippet:
[snip]
> char x = -4;
[snip]
>
> If I compile it with host gcc, there is no warning and the message "x is
> negative" is printed. If I compile it with ppc_8xx-gcc there is a warning
> "main.c:11: warning: comparison is always false due to limited range of
> data type" and the program prints message "x is positive". To correct the
> problem I have to put signed before char.
>
You can also use the -fsigned-char compilation flag, in this case.
--
Ricardo Scop.
prev parent reply other threads:[~2007-08-29 5:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-28 18:56 ppc_8xx-gcc from eldk strange behaviour DI BACCO ANTONIO - technolabs
2007-08-28 19:01 ` Scott Wood
2007-08-29 9:28 ` DI BACCO ANTONIO - technolabs
2007-08-29 23:28 ` Wolfgang Denk
2007-08-29 4:50 ` Ricardo Scop [this message]
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