Add comments.

1 files changed, 9 insertions, 1 deletions

diff --git a/c/debug.h b/c/debug.h
index 83ff289..f58c700 100644
--- a/c/debug.h
+++ b/c/debug.h
@@ -1,11 +1,18 @@
 #ifndef DEBUG_H
 #define DEBUG_H
 
+/* Benchmark objects measure and print the time in microseconds
+ * between construction and destruction. Given a unique id, they also
+ * calculate a running average of the last `avgmax' instances of
+ * objects of the same id. */
 struct Benchmark
 {
 	Benchmark(const char* name, int id, int avgmax);
 	~Benchmark();
+
+	/* Don't print time on destruction. */
 	void Disable();
+
 	long long ticks;
 	bool disabled = false;
 	int id;
@@ -13,6 +20,7 @@ struct Benchmark
 	const char* name;
 };
 
-const char* MsgName(unsigned uMsg);
+/* Return name of given window message (WM_*). */
+const char* WmName(unsigned uMsg);
 
 #endif