Add compile time checks

1 files changed, 12 insertions, 0 deletions

diff --git a/osi/include/osi.h b/osi/include/osi.h
index 6928e0c1a..c035bf810 100644
--- a/osi/include/osi.h
+++ b/osi/include/osi.h
@@ -7,4 +7,16 @@
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 #define INVALID_FD (-1)
 
+#define CONCAT(a, b) a##b
+
+// Use during compile time to check conditional values
+// NOTE: The the failures will present as a generic error
+// "error: initialization makes pointer from integer without a cast"
+// but the file and line number will present the condition that
+// failed.
+#define DUMMY_COUNTER(c) CONCAT(__osi_dummy_, c)
+#define DUMMY_PTR DUMMY_COUNTER(__COUNTER__)
+
+#define COMPILE_ASSERT(x) char * DUMMY_PTR = !(x)
+
 typedef uint32_t timeout_t;