Cast NULL in void * in functions using va_arg

NULL isn't necessary a zero value. For instance, on AMD64 architecture,
a null pointer is 0x7fff00000000. Usually things works automagically as
the compiler always cast NULL and 0 in void * if stored in a pointer
variable. But with functions with variable number of arguments the
compiler can't know the type of the arguments and thus don't make the
cast. In consequences, NULL and 0 must be cast explicitely in void * if
the parameter is a pointer.

1 files changed, 3 insertions, 3 deletions

diff --git a/test/vformat.c b/test/vformat.c
index b4a753d..40c299e 100644
--- a/test/vformat.c
+++ b/test/vformat.c
@@ -489,19 +489,19 @@ static void check_extract_fields(
         }
 
         printf(" Looking for {%s, %s}...\n", p_array[0], p_array[1]);
-        if (vf_get_property(&p_tmp, p_object, VFGP_FIND, NULL, p_array[0], p_array[1], NULL))
+        if (vf_get_property(&p_tmp, p_object, VFGP_FIND, NULL, p_array[0], p_array[1], (void *) NULL))
         {
             print_search_results(p_tmp);
         }
 
         printf(" Looking for {%s, %s}...\n", p_array[0], p_array[2]);
-        if (vf_get_property(&p_tmp, p_object, VFGP_FIND, NULL, p_array[0], p_array[2], NULL))
+        if (vf_get_property(&p_tmp, p_object, VFGP_FIND, NULL, p_array[0], p_array[2], (void *) NULL))
         {
             print_search_results(p_tmp);
         }
 
         printf(" Looking for {%s, %s, %s}...\n", p_array[0], p_array[1], p_array[2]);
-        if (vf_get_property(&p_tmp, p_object, VFGP_FIND, NULL, p_array[0], p_array[1], p_array[2], NULL))
+        if (vf_get_property(&p_tmp, p_object, VFGP_FIND, NULL, p_array[0], p_array[1], p_array[2], (void *) NULL))
         {
             print_search_results(p_tmp);
         }