From 6889dc69fbd9adce35bbcc17fbd73ddcb8610eb9 Mon Sep 17 00:00:00 2001
From: Howard Hinnant <howard.hinnant@gmail.com>
Date: Mon, 26 Dec 2016 18:34:40 -0500
Subject: [PATCH] Add missing #include

---
 date.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/date.h b/date.h
index 66037fb..4df3fa1 100644
--- a/date.h
+++ b/date.h
@@ -28,6 +28,7 @@
 // been invented (that woud involve another several millennia of evolution).
 // We did not mean to shout.
 
+#include <algorithm>
 #include <cctype>
 #include <chrono>
 #if !(__cplusplus >= 201402)