From 2a371001f8d23533a339a150eeffa3215773058d Mon Sep 17 00:00:00 2001 From: Zbigniew Jędrzejewski-Szmek Date: Thu, 25 Apr 2013 20:53:29 -0400 Subject: Use attribute(unused) in PROTECT_ERRNO MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit clang emits warnings about unused attribute _saved_errno_, which drown out other—potentially useful—warnings. gcc documentation is not exactly verbose about the effects of __attribute__((unused)) on variables, but let's assume that it works if the unit test passes. --- src/test/test-util.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'src/test/test-util.c') diff --git a/src/test/test-util.c b/src/test/test-util.c index 66a10ead46..4c3a8a6b88 100644 --- a/src/test/test-util.c +++ b/src/test/test-util.c @@ -24,6 +24,7 @@ #include #include #include +#include #include "util.h" @@ -429,6 +430,15 @@ static void test_get_process_comm(void) { log_info("pid1 $PATH: '%s'", strna(i)); } +static void test_protect_errno(void) { + errno = 12; + { + PROTECT_ERRNO; + errno = 11; + } + assert(errno == 12); +} + int main(int argc, char *argv[]) { test_streq_ptr(); test_first_word(); @@ -456,6 +466,7 @@ int main(int argc, char *argv[]) { test_hostname_is_valid(); test_u64log2(); test_get_process_comm(); + test_protect_errno(); return 0; } -- cgit v1.2.3-54-g00ecf