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Mail Archives: cygwin/2001/09/06/03:23:36

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Date: Thu, 6 Sep 2001 09:23:21 +0200
From: Corinna Vinschen <cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Scanf with a long long.
Message-ID: <20010906092321.H18845@cygbert.vinschen.de>
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References: <20010906005413 DOT A758 AT ping DOT be>
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In-Reply-To: <20010906005413.A758@ping.be>; from Q@ping.be on Thu, Sep 06, 2001 at 12:54:13AM +0200

On Thu, Sep 06, 2001 at 12:54:13AM +0200, Kurt Roeckx wrote:
> I need use a 64 bit number, and int64_t is defined as a long
> long.
> 
> The problem is that scanf doesn't like numbers bigger then
> 0xFFFFFFFF, and always returns that number in that case.  printf
> works fine with them.
> 
> An example is doing this:
> 
> 	long long int	i;
> 
> 	sscanf("123456789", "%Lx", &i);
> 	printf("%llx\n%llx\n", i, i + 1);
> 
> it will print:
> 
> ffffffff
> 100000000
> 
> This problem seems to be reported once before in 1997, but still
> doesn't seem to be fixed.
> I'm using cygwin 1.3.2 on win98.

It's a newlib problem. Nobody implemented strtoll or strtoull
so far.  So scanf can't call them.

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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