From 0a1e3d1336034c39d2cb595276d5c4158975d347 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jean-Prost=20Fr=C3=A9d=C3=A9ric?=
 <jean-prost.frederic@neuf.fr>
Date: Sun, 24 Nov 2019 13:05:40 +0100
Subject: [PATCH] Add Conditional

---
 source/utf8/cpp11_facilities.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/source/utf8/cpp11_facilities.h b/source/utf8/cpp11_facilities.h
index ccdd246..d283417 100644
--- a/source/utf8/cpp11_facilities.h
+++ b/source/utf8/cpp11_facilities.h
@@ -30,10 +30,12 @@ DEALINGS IN THE SOFTWARE.
 namespace utf8
 {
  namespace internal {
+   template <bool B, typename U, typename F>
+   using Conditional = typename std::conditional<B,U,F>::type;
    template <typename T>
    using Iterator_category = typename std::iterator_traits<T>::iterator_category;
-	template <typename T>
-	using Decay = typename std::decay<T>::type;//std::decay_t in c++14
+   template <typename T>
+   using Decay = typename std::decay<T>::type;//std::decay_t in c++14
  } // namespace internal
 } // namespace utf8