From 8b558996d6edf85013452b1751ea12e5bb40cd69 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=C5=81ukasz=20Stelmach?= <l.stelmach@samsung.com>
Date: Wed, 31 May 2017 13:26:39 +0200
Subject: [PATCH] wip
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Change-Id: I44da8f5ff2419e1555c7451404e6fb4f0a3d0f2d
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
---
 src/core/database.c | 3 +++
 src/util/common.h   | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/src/core/database.c b/src/core/database.c
index 5d06143..3cd6eee 100644
--- a/src/core/database.c
+++ b/src/core/database.c
@@ -193,6 +193,9 @@ int database_new_oid(bson_oid_t *oid)
 	assert(oid != NULL);
 
 	sd_id128_randomize(&uuid);
+
+	BUILD_BUG_ON(sizeof(bson_oid_t) > sizeof(sd_id128_t));
 	memcpy(oid, uuid.bytes, sizeof(*oid));
+
 	return 0;
 }
diff --git a/src/util/common.h b/src/util/common.h
index a17581e..bd3bcf0 100644
--- a/src/util/common.h
+++ b/src/util/common.h
@@ -30,6 +30,8 @@
 							 o.ints[1] == 0 && \
 							 o.ints[2] == 0)
 
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+
 #ifndef offsetof
 #define offsetof(type, member)  __builtin_offsetof(type, member)
 #endif /* offsetof */
-- 
2.34.1