Messages in this thread | | | Subject | Re: Warnings building 2.4.22rc2 with gcc 3.3 | From | Luiz Capitulino <> | Date | 11 Aug 2003 13:59:05 -0300 |
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Willy,
Em Seg, 2003-08-11 às 12:50, Willy Tarreau escreveu: > On Mon, Aug 11, 2003 at 01:54:53AM -0700, Alex Davis wrote: > > When I build 2.4.22rc2 with gcc 3.3, I get the following warnings > > > > > > vt.c:166: warning: comparison is always false due to limited range of data type > > vt.c:283: warning: comparison is always false due to limited range of data type > > keyboard.c:644: warning: comparison is always true due to limited range of data type > > > > It seems an unsigned char is being compared with 256, which always returns false. > > For keyboard.c, the test is : > > if (value < SIZE(func_table)) { > > so it's reassuring that any value is contained in the table. We could hide > the warning with a cast of value to (int).
I'm getting it in 2.6.0-test3(-mm1) too. The problem (I think) is that the ''if'' is aways true because ''value'' never will be > than ''SIZE(func_table)''. The cast does not solve the problem, because ''value'' have just 8 bits (unsigned char) used, in other words, with the cast the ''if'' will continue to be true.
-- Luiz Fernando N. Capitulino
<lcapitulino@prefeitura.sp.gov.br> <http://www.telecentros.sp.gov.br>
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