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-rw-r--r--mysys/waiting_threads.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mysys/waiting_threads.c b/mysys/waiting_threads.c
index 255317ea4cc..489be6edbad 100644
--- a/mysys/waiting_threads.c
+++ b/mysys/waiting_threads.c
@@ -347,6 +347,8 @@ void wt_thd_destroy(WT_THD *thd)
*/
int wt_resource_id_memcmp(void *a, void *b)
{
+ /* assert that the structure is not padded with random bytes */
+ compile_time_assert(sizeof(WT_RESOURCE_ID)==sizeof(ulonglong)+sizeof(void*));
return memcmp(a, b, sizeof(WT_RESOURCE_ID));
}