From 76788013d064ed7f382df8013062052c8a60a86e Mon Sep 17 00:00:00 2001
From: Forrest Green <greengadgetz@gmail.com>
Date: Fri, 7 Apr 2017 11:28:22 -0700
Subject: [PATCH] Add macro for doing quick and dirty benchmarks by printing
 out execution time of functions

---
 geode/utility/CMakeLists.txt |  1 +
 geode/utility/timed_call.h   | 25 +++++++++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 geode/utility/timed_call.h

diff --git a/geode/utility/CMakeLists.txt b/geode/utility/CMakeLists.txt
index bbabbd6b..d274c353 100644
--- a/geode/utility/CMakeLists.txt
+++ b/geode/utility/CMakeLists.txt
@@ -68,6 +68,7 @@ set(module_HEADERS
   stream.h
   str.h
   time.h
+  timed_call.h
   tr1.h
   type_traits.h
   Unique.h
diff --git a/geode/utility/timed_call.h b/geode/utility/timed_call.h
new file mode 100644
index 00000000..b6575774
--- /dev/null
+++ b/geode/utility/timed_call.h
@@ -0,0 +1,25 @@
+#pragma once
+#include <geode/utility/time.h>
+namespace geode {
+
+struct TimedCallHelper {
+  std::string msg;
+  real start_time = get_time();
+  TimedCallHelper(const string& new_msg)
+   : msg(new_msg)
+  { }
+  ~TimedCallHelper() {
+    const auto end_time = get_time();
+    std::cout << msg << " took " << (end_time - start_time) << " seconds.\n";
+  }
+};
+
+template<class Fn, class... Args> auto timed_call(const string& msg, Fn&& fn, Args&&... args) -> decltype(fn(std::forward<Args>(args)...)) {
+  GEODE_UNUSED const auto& helper = TimedCallHelper{msg};
+  return fn(std::forward<Args>(args)...);
+}
+
+// Call a function printing execution time to cout
+#define GEODE_TIMED_CALL(fn,...) geode::timed_call(#fn,fn,__VA_ARGS__)
+
+} // geode namespace
\ No newline at end of file