merge(3p/immer): Subtree merge at 'ad3e3556d' as 'third_party/immer' r/1299

Change-Id: I9636a41ad44b4218293833fd3e9456d9b07c731b

1 files changed, 55 insertions, 0 deletions

diff --git a/third_party/immer/benchmark/set/insert.hpp b/third_party/immer/benchmark/set/insert.hpp
new file mode 100644
index 000000000000..be679b4de342
--- /dev/null
+++ b/third_party/immer/benchmark/set/insert.hpp
@@ -0,0 +1,55 @@
+//
+// immer: immutable data structures for C++
+// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
+//
+// This software is distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
+//
+
+#pragma once
+
+#include "benchmark/config.hpp"
+
+#include <immer/set.hpp>
+#include <hash_trie.hpp> // Phil Nash
+#include <boost/container/flat_set.hpp>
+#include <set>
+#include <unordered_set>
+
+namespace {
+
+template <typename Generator, typename Set>
+auto benchmark_insert_mut_std()
+{
+    return [] (nonius::chronometer meter)
+    {
+        auto n = meter.param<N>();
+        auto g = Generator{}(n);
+
+        measure(meter, [&] {
+            auto v = Set{};
+            for (auto i = 0u; i < n; ++i)
+                v.insert(g[i]);
+            return v;
+        });
+    };
+}
+
+template <typename Generator, typename Set>
+auto benchmark_insert()
+{
+    return [] (nonius::chronometer meter)
+    {
+        auto n = meter.param<N>();
+        auto g = Generator{}(n);
+
+        measure(meter, [&] {
+            auto v = Set{};
+            for (auto i = 0u; i < n; ++i)
+                v = v.insert(g[i]);
+            return v;
+        });
+    };
+}
+
+} // namespace