From cdd72c7e567f36037e1e98a40767c4293bf9866e Mon Sep 17 00:00:00 2001
From: Dennis Luxen <info@project-osrm.org>
Date: Tue, 8 Jul 2014 10:45:43 +0200
Subject: [PATCH] fast forward variant lib

---
 ThirdParty/variant/variant.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ThirdParty/variant/variant.hpp b/ThirdParty/variant/variant.hpp
index 0b05cb5c6..3eac9b82c 100644
--- a/ThirdParty/variant/variant.hpp
+++ b/ThirdParty/variant/variant.hpp
@@ -487,6 +487,8 @@ private:
 
 } // namespace detail
 
+struct no_init {};
+
 template<typename... Types>
 class variant
 {
@@ -503,12 +505,16 @@ private:
 
 public:
 
+
     VARIANT_INLINE variant()
         : type_index(sizeof...(Types) - 1)
     {
         new (&data) typename detail::select_type<0, Types...>::type();
     }
 
+    VARIANT_INLINE variant(no_init)
+        : type_index(detail::invalid_value) {}
+
     template <typename T, class = typename std::enable_if<
                          detail::is_valid_type<T, Types...>::value>::type>
     VARIANT_INLINE explicit variant(T const& val) noexcept