1 files changed, 1 insertions, 0 deletions
diff --git a/c/util.h b/c/util.h
index babe0c5..11840fa 100644
--- a/c/util.h
+++ b/c/util.h
@@ -3,6 +3,7 @@
 
 #include <memory>
 
+/* Format static wide string. */
 template<size_t N, typename... T>
 inline int Swprintf(wchar_t (&buf)[N], const wchar_t* const fmt, T... xs)
 {