From 6ff8072e8c5a6dc1301e884f5a648a0b63bdd48a Mon Sep 17 00:00:00 2001
From: Arnur Nigmetov <nigmetov@tugraz.at>
Date: Tue, 3 Dec 2019 20:34:28 +0100
Subject: Rename directories for bottleneck and Wasserstein

---
 wasserstein/include/hera_infinity.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 wasserstein/include/hera_infinity.h

(limited to 'wasserstein/include/hera_infinity.h')

diff --git a/wasserstein/include/hera_infinity.h b/wasserstein/include/hera_infinity.h
new file mode 100644
index 0000000..8d86dbb
--- /dev/null
+++ b/wasserstein/include/hera_infinity.h
@@ -0,0 +1,22 @@
+#ifndef WASSERSTEIN_HERA_INFINITY_H
+#define WASSERSTEIN_HERA_INFINITY_H
+
+// we cannot assume that template parameter Real will always provide infinity() value,
+// so value -1.0 is used to encode infinity (l_inf norm is used by default)
+
+namespace hera {
+
+    template<class Real = double>
+    inline bool is_infinity(const Real& x)
+    {
+        return x == Real(-1);
+    };
+
+    template<class Real = double>
+    inline constexpr Real get_infinity()
+    {
+        return Real(-1);
+    }
+}
+
+#endif //WASSERSTEIN_HERA_INFINITY_H
-- 
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