On Tue, Oct 22, 2013 at 8:41 PM, Tong Sun <mlist4sunt...@yahoo.com> wrote:
> Hi,
>
> Is it OK to have compile warnings when building a package? If not,
>
> how can I fix the following:
>
> dial.c: In function 'main':
> dial.c:273:8: warning: ignoring return value of 'write', declared with
> attribute warn_unused_result [-Wunused-result]
> write(fd, buf, bufidx);
>
>
To directly answer your question, since I think everyone so far has told
you that you should fix it, this answer from S/O [1]
#define ignore_result(x) ({ typeof(x) z = x; (void)sizeof z; })
then:
ignore_result( func(...) )
[1]
http://stackoverflow.com/questions/3614691/casting-to-void-doesnt-remove-warn-unused-result-error/3615000#3615000
I got a bunch of such ignoring-return-value warnings.
>
> Thanks
>
>
>
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