Index: uspace/lib/c/include/types/casting.h
===================================================================
--- uspace/lib/c/include/types/casting.h	(revision 32236e543b3f74eca9e8c9ae2e2fd694b6c1b5f0)
+++ uspace/lib/c/include/types/casting.h	(revision 79bb48e29700cebe4c047377d62d33cff0357a43)
@@ -48,5 +48,5 @@
 {
 	unsigned int as_uint = (unsigned int) val;
-	return ! ((as_uint != val) || (((int) as_uint) < 0));
+	return !((as_uint != val) || (((int) as_uint) < 0));
 }