[Spice-devel] [PATCH v2] remove a warning building a test

[Christophe Fergeau]

On Tue, May 17, 2016 at 04:44:04PM +0100, Frediano Ziglio wrote:
> With my compile switches (which are mostly derived from RedHat spec
> file) I'm getting this warning:
> 
> stream-test.c: In function 'sock_fd_read':
> stream-test.c:66:43: warning: dereferencing type-punned pointer will
> break strict-aliasing rules [-Wstrict-aliasing]
>              *fd = *((int *) CMSG_DATA(cmsg));
>                                            ^
> 
> memcpy could decrease performance but as this is a test it's not
> an issue.

Can you avoid the warning with an additional (void *) cast?
*fd = *((int *) (void *) CMSG_DATA(cmsg))); ?

Christophe
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