Message-ID: <02cf01c35571$851e5990$0600000a@broadpark.no>
From: "Gisle Vanem" <giva AT bgnett DOT no>
To: <djgpp AT delorie DOT com>
References: <3F246120 DOT 63C3753C AT worldnet DOT att DOT net> <Z6_Ua.375$%S6 DOT 105 AT newsread1 DOT news DOT atl DOT earthlink DOT net> <3F24AA4B DOT 589D3482 AT worldnet DOT att DOT net> <bg3d1h$d30$1 AT newsreader1 DOT netway DOT at> <7458-Mon28Jul2003184701+0300-eliz AT elta DOT co DOT il> <bg4dkh$8er$1 AT newsreader1 DOT netway DOT at>
Subject: Re: integer overflow
Date: Tue, 29 Jul 2003 03:34:14 +0200
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Reply-To: djgpp AT delorie DOT com

"News Reader" <nospam AT aol DOT com> said:

> Being human and therefore being prone to making mistakes
> from time to time, I will not allow any of my programs to run
> if the compiler output produces a single warning as a matter
> of principle. "-Wall" has saved me (and my programs) several
> times and this is the main reason why I still keep using C once
> in a while.

Then you should add '-W' since '-Wall' doesn't warn about
all possibly erroneous code; like mixing signed and unsigned
types.

> Compilation of your code produces the following output:
> 
>    x.c: In function `main':
>    x.c:7: warning: unknown conversion type character `U' in format
>    x.c:7: warning: too many arguments for format

My guess is that gcc isn't updated on what djgpp's _doprnt
can accept as format-specifiers. It's the same with most gcc
ports; MingW's gcc warns about "%ws" being unknown, but it
works fine since MSVCRT.DLL handles he printing.

--gv