More refactoring

benchmarks/comparisons/hashtable/unorderedmap.cpp

@@ -0,0 +1,34 @@
+#ifndef COUNT
+#error "Please define COUNT"
+#endif
+
+#include "murmurhash.h"
+
+#include <unordered_map>
+
+#include "../../util/twister.c"
+
+struct IntHasher
+{
+    std::size_t operator()(const uint64_t &k) const
+    {
+        static size_t seed = 211106232532969;
+        return MurMurHash(&k, sizeof(k), seed);
+    }
+};
+
+int main(void)
+{
+    mt_state tw;
+    twist_init(&tw, 50331653);
+
+    std::unordered_map<uint64_t, uint64_t, IntHasher> map(COUNT);
+
+    for (uint64_t i = 0; i < COUNT; i++)
+    {
+        uint64_t v = twist_uint64(&tw);
+        map.insert({ v, v });
+    }
+
+    return 0;
+}