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# Re: Probably a very simple problem - hopefully someone will help me

• To: David Ayliffe <me at ayliffe dot com>
• Subject: Re: Probably a very simple problem - hopefully someone will help me
• From: Kurt Roeckx <Q at ping dot be>
• Date: Mon, 23 Jul 2001 16:12:44 +0200
• Cc: cygwin at cygwin dot com
• References: <000001c112f0\$081c2dc0\$76be1f3e@rubberducky>

```On Sun, Jul 22, 2001 at 09:51:07PM +0100, David Ayliffe wrote:
>
> I get these errors when I compile using the command directly below
>
> \$ gcc byte_hacking.cpp
> byte_hacking.cpp: In function 'int main():
> byte_hacking.cpp:20 implicit declaration of function 'int lseek(...)'
> byte_hacking.cpp:22 implicit declaration of function 'int read(...)'
> byte_hacking.cpp:27 implicit declaration of function 'int write(...)'
> byte_hacking.cpp:25 implicit declaration of function 'int close(...)'

They're not errors, they're warnings.

> //Gets records from a MS Access Database
>
> #include <io.h>
> #include <fcntl.h>
> #include <stdio.h>
> #include <sys\stat.h>

It should be <sys/stat.h>, and you forgot: #include <unistd.h>
which declares all of those functions.

Kurt

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