Index: src/libcfa/stdhdr/assert.h
===================================================================
--- src/libcfa/stdhdr/assert.h	(revision f5478c89f22dfaa80c81adb28a7eba9eb97eb1a7)
+++ src/libcfa/stdhdr/assert.h	(revision 3ca540ff8fca8be28ec085a72a11b96bf920dd76)
@@ -30,4 +30,12 @@
 #endif
 
+#if !defined(NDEBUG) && (defined(__CFA_DEBUG__) || defined(__CFA_VERIFY__))
+	#define verify(x) assert(x)
+	#define verifyf(x, ...) assertf(x, __VA_ARGS__)
+#else
+	#define verify(x)
+	#define verifyf(x, ...)
+#endif
+
 #ifdef __cforall
 } // extern "C"