From 5a59cfad45c155f8af89c2c6d82db2848d52a953 Mon Sep 17 00:00:00 2001
From: Arnur Nigmetov <nigmetov@tugraz.at>
Date: Tue, 17 Sep 2019 22:22:57 +0200
Subject: Add traits for long double (Wasserstein).

---
 geom_matching/wasserstein/include/wasserstein.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/geom_matching/wasserstein/include/wasserstein.h b/geom_matching/wasserstein/include/wasserstein.h
index 17bb211..d8d6b2e 100644
--- a/geom_matching/wasserstein/include/wasserstein.h
+++ b/geom_matching/wasserstein/include/wasserstein.h
@@ -56,6 +56,17 @@ struct DiagramTraits
     static RealType get_y(const PointType& p)       { return p[1]; }
 };
 
+template<class PairContainer_>
+struct DiagramTraits<PairContainer_, std::pair<long double, long double>>
+{
+    using PointType = std::pair<long double, long double>;
+    using RealType  = long double;
+    using Container = std::vector<PointType>;
+
+    static RealType get_x(const PointType& p)       { return p.first; }
+    static RealType get_y(const PointType& p)       { return p.second; }
+};
+
 template<class PairContainer_>
 struct DiagramTraits<PairContainer_, std::pair<double, double>>
 {
-- 
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