lib: i_zero*() - Give compiler error if it's wrongly used on an array

diff --git a/src/lib/macros.h b/src/lib/macros.h
index b12f3764cb992aa4459e1efbe01a642dfa635601..16c69b2f276586bbd5b66d9d5a6bc11337ae5f84 100644 (file)
--- a/src/lib/macros.h
+++ b/src/lib/macros.h
@@ -235,8 +235,10 @@
 #endif
 
 /* Convenience wrappers for initializing a struct */
-#define i_zero(p) memset(p, 0, sizeof(*(p)))
-#define i_zero_safe(p) safe_memset(p, 0, sizeof(*(p)))
+#define i_zero(p) \
+       memset(p, 0 +  + COMPILE_ERROR_IF_TRUE(sizeof(p) > sizeof(void *)), sizeof(*(p)))
+#define i_zero_safe(p) \
+       safe_memset(p, 0 +  + COMPILE_ERROR_IF_TRUE(sizeof(p) > sizeof(void *)), sizeof(*(p)))
 
 #define ST_CHANGED(st_a, st_b) \
        ((st_a).st_mtime != (st_b).st_mtime || \