[compiler-rt] r262342 - sanitizer_common: silence compiler warning

[David Blaikie via llvm-commits]

Might be useful to explain in the comment why the variable is there?
On Mar 1, 2016 7:41 AM, "Dmitry Vyukov via llvm-commits" <
llvm-commits at lists.llvm.org> wrote:

> Author: dvyukov
> Date: Tue Mar  1 09:36:42 2016
> New Revision: 262342
>
> URL: http://llvm.org/viewvc/llvm-project?rev=262342&view=rev
> Log:
> sanitizer_common: silence compiler warning
>
>
> Modified:
>
> compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc
>
> Modified:
> compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc
> URL:
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc?rev=262342&r1=262341&r2=262342&view=diff
>
> ==============================================================================
> ---
> compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc
> (original)
> +++
> compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc
> Tue Mar  1 09:36:42 2016
> @@ -5354,6 +5354,7 @@ INTERCEPTOR(SSIZE_T, recvfrom, int fd, v
>    COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
>    SIZE_T srcaddr_sz;
>    if (srcaddr) srcaddr_sz = *addrlen;
> +  (void)srcaddr_sz;  // prevent "set but not used" warning
>    SSIZE_T res = REAL(recvfrom)(fd, buf, len, flags, srcaddr, addrlen);
>    if (res > 0) {
>      COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res);
>
>
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