From 321d8132c4309fb84012547880db8c7430c3d622 Mon Sep 17 00:00:00 2001
From: Abd Errahmane Kiouche <abd-errahmane.kiouche@etu.univ-lyon1.fr>
Date: Fri, 15 Dec 2023 10:39:43 +0000
Subject: [PATCH] Upload New File
---
(p,t)_sparsification/hash.h | 43 +++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
create mode 100644 (p,t)_sparsification/hash.h
diff --git a/(p,t)_sparsification/hash.h b/(p,t)_sparsification/hash.h
new file mode 100644
index 0000000..3394fd2
--- /dev/null
+++ b/(p,t)_sparsification/hash.h
@@ -0,0 +1,43 @@
+//
+// Created by Kiouche on 1/20/2020.
+//
+
+#ifndef P_K_COMPRESSION_HASH_H
+#define P_K_COMPRESSION_HASH_H
+
+
+
+
+#include <string>
+#include <vector>
+
+namespace std {
+
+
+/* Combination hash from Boost */
+ template <class T>
+ inline void hash_combine(size_t& seed, const T& v)
+ {
+ hash<T> hasher;
+ seed ^= hasher(v) + 0x9e3779b9 + (seed << 6) + (seed >> 2);
+ }
+
+ template<typename S, typename T> struct hash<pair<S, T>>
+{
+ inline size_t operator()(const pair<S, T>& v) const
+ {
+ size_t seed = 0;
+ hash_combine(seed, v.first);
+ hash_combine(seed, v.second);
+ return seed;
+ }
+
+};
+/* End combination hash from Boost */
+
+
+
+}
+
+
+#endif //P_K_COMPRESSION_HASH_H
--
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