update ceph source to reef 18.1.2

[ceph.git] / ceph / src / boost / libs / random / test / test_mixmax.cpp

diff --git a/ceph/src/boost/libs/random/test/test_mixmax.cpp b/ceph/src/boost/libs/random/test/test_mixmax.cpp
new file mode 100644 (file)
index 0000000..d6d62df
--- /dev/null
+++ b/ceph/src/boost/libs/random/test/test_mixmax.cpp
@@ -0,0 +1,52 @@
+/* test_mixmax.cpp
+ *
+ * Copyright Kostas Savvidis 2019
+ * Distributed under the Boost Software License, Version 1.0. (See
+ * accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * $Id$
+ *
+ */
+
+#include <boost/random/mixmax.hpp>
+#include <cmath>
+
+#define BOOST_RANDOM_URNG boost::random::mixmax
+
+#define BOOST_RANDOM_SEED_WORDS 4
+
+//#define BOOST_RANDOM_VALIDATION_VALUE 1U
+#define BOOST_RANDOM_SEED_SEQ_VALIDATION_VALUE 48757672604362303ULL
+#define BOOST_RANDOM_ITERATOR_VALIDATION_VALUE 3802490769389764ULL
+
+// 10000th invocation of MIXMAX with N=17, with default constructor should give:
+#define BOOST_RANDOM_VALIDATION_VALUE UINT64_C(1842572666014501720)
+#define BOOST_RANDOM_GENERATE_VALUES {  3132207748, 2861541672, 3191701354, 4046050275 }
+
+#include "test_generator.ipp"
+
+struct seed_seq_0 {
+    template<class It>
+    void generate(It begin, It end) const {
+        std::fill(begin, end, boost::uint32_t(0xFFFFFFFF));
+    }
+};
+
+BOOST_AUTO_TEST_CASE(test_special_seed) {
+    {
+        seed_seq_0 seed;
+        std::vector<boost::uint32_t> vec(17);
+        seed.generate(vec.begin(), vec.end()); // fill vec with ones
+        std::vector<boost::uint32_t>::iterator it = vec.begin();
+        boost::random::mixmax gen1(it, vec.end()); // init gen1 with vec iterator
+        BOOST_CHECK_EQUAL(gen1(), 775778250716139533ULL);
+        BOOST_CHECK_EQUAL(gen1(), 846264592759195742ULL);
+
+        boost::random::mixmax gen2(seed); // init gen2 with seeq_seq, should be the same as gen1!
+        BOOST_CHECK_EQUAL(gen2(), 775778250716139533ULL);
+        BOOST_CHECK_EQUAL(gen2(), 846264592759195742ULL);
+
+        BOOST_CHECK_EQUAL(gen1, gen2);
+    }
+}