From 16775dccb9bad55daee7b3ee3e5efba6c58f9258 Mon Sep 17 00:00:00 2001
From: Howard Hinnant <howard.hinnant@gmail.com>
Date: Mon, 3 Aug 2015 22:13:20 -0400
Subject: [PATCH] Remove streaming for time_points with resolution greater...
 than a day.

* cout << floor<years>(system_clock::now()) is very confusing.
* The aforementioned streaming operation is now a compile time error.
---
 date.h | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/date.h b/date.h
index 4473d94..073abee 100644
--- a/date.h
+++ b/date.h
@@ -3455,18 +3455,11 @@ operator<<(std::ostream& os,
     return os << year_month_day(dp) << ' ' << make_time(tp-dp);
 }
 
-template <class Duration>
 inline
-typename std::enable_if
-<
-    !std::chrono::treat_as_floating_point<typename Duration::rep>::value &&
-        !std::ratio_less<typename Duration::period, days::period>::value
-    , std::ostream&
->::type
-operator<<(std::ostream& os,
-           const std::chrono::time_point<std::chrono::system_clock, Duration>& tp)
+std::ostream&
+operator<<(std::ostream& os, const day_point& dp)
 {
-    return os << year_month_day(floor<days>(tp));
+    return os << year_month_day(dp);
 }
 
 }  // namespace date