[Qemu-devel] [PATCH] Silence compiler warning in json test case

[Jan Kiszka <jan.kiszka@web.de>]

Am 16.10.2010 18:28, Blue Swirl wrote:
> On Sat, Oct 16, 2010 at 12:37 AM, Paolo Bonzini <pbonzini@redhat.com> wrote:
>> On 10/15/2010 07:41 PM, Blue Swirl wrote:
>>>
>>> Which functions are optimized away and which aren't?
>>
>> It's builtins only that are optimized away or otherwise inlined (printf,
>> sprintf, etc.).  Other calls stay, together with side effects and clock
>> cycles.
> 
> Then the warning makes sense (slightly) and should remain on main QEMU side.
> 

From: Jan Kiszka <jan.kiszka@siemens.com>

This avoids

    error: zero-length gnu_printf format string

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 check-qjson.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/check-qjson.c b/check-qjson.c
index 0b60e45..64fcdcb 100644
--- a/check-qjson.c
+++ b/check-qjson.c
@@ -639,7 +639,9 @@ END_TEST
 
 START_TEST(empty_input)
 {
-    QObject *obj = qobject_from_json("");
+    const char *empty = "";
+
+    QObject *obj = qobject_from_json(empty);
     fail_unless(obj == NULL);
 }
 END_TEST