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Re: second call to mmap() results in error
- From: "Larry Hall (Cygwin)" <reply-to-list-only-lh at cygwin dot com>
- To: cygwin at cygwin dot com
- Date: Thu, 30 Jan 2014 14:01:05 -0500
- Subject: Re: second call to mmap() results in error
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- Reply-to: cygwin at cygwin dot com
On 1/30/2014 1:52 PM, Lavrentiev, Anton (NIH/NLM/NCBI) [C] wrote:
Try adding -Wall to your compile line.
I did. There was no warning (and it should not have because
#include <sys/mman.h> is there). Why <unistd.h> ? It's not
needed to compile and run the original code.
Forget mmap(). That's not the issue here. It's ftruncate()
which is declared in unistd.h. If 'gcc -Wall -o foo foo.c',
where foo.c is Steve's code from the link below, doesn't result
in a
foo.c:18:28: error: ‘ftruncate’ was not declared in this scope
ftruncate(shm_fd1, 524304);
complaint, then I'd say you need to send a full problem report if
you can't find a good reason for that behavior in your environment -
<http://cygwin.com/problems.html>
<http://cygwin.com/ml/cygwin/2014-01/msg00518.html>
--
Larry
_____________________________________________________________________
A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?
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