From f57432d7b4d18ddca6ddef713a0d7c2d81310fed Mon Sep 17 00:00:00 2001
From: Howard Hinnant <howard.hinnant@gmail.com>
Date: Thu, 4 May 2017 14:47:28 -0400
Subject: [PATCH] Don't skip white space by default in from_stream.

* Put a space at the beginning of your
  format string to recover this behavior.
---
 date.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/date.h b/date.h
index 8c710e3..fd4ee7f 100644
--- a/date.h
+++ b/date.h
@@ -5448,7 +5448,7 @@ from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
 {
     using namespace std;
     using namespace std::chrono;
-    typename basic_istream<CharT, Traits>::sentry ok{is};
+    typename basic_istream<CharT, Traits>::sentry ok{is, true};
     if (ok)
     {
         auto& f = use_facet<time_get<CharT>>(is.getloc());