--- /dev/null
+/*
+ This file is a part of libcds - Concurrent Data Structures library
+
+ (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2017
+
+ Source code repo: http://github.com/khizmax/libcds/
+ Download: http://sourceforge.net/projects/libcds/files/
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <gtest/gtest.h>
+#include <cds/algo/bit_reversal.h>
+
+namespace {
+
+ template <typename UInt>
+ class bit_reversal: public ::testing::Test
+ {
+ typedef UInt uint_type;
+ static std::vector<uint_type> arr_;
+ static size_t const c_size = 100'000'000;
+
+ public:
+ static void SetUpTestCase()
+ {
+ arr_.resize( c_size );
+ for ( size_t i = 0; i < c_size; ++i )
+ arr_[i] = static_cast<uint_type>((i << 32) + (~i));
+ }
+
+ static void TearDownTestCase()
+ {
+ arr_.resize( 0 );
+ }
+
+ template <typename Algo>
+ void test()
+ {
+ Algo f;
+ for ( auto i : arr_ ) {
+ EXPECT_EQ( i, f( f( i )));
+ }
+ }
+
+ template <typename Algo>
+ void test_eq()
+ {
+ Algo f;
+ for ( auto i : arr_ ) {
+ EXPECT_EQ( cds::algo::bit_reversal::swar()( i ), f( i ) ) << "i=" << i;
+ }
+ }
+ };
+
+ template <typename UInt> std::vector<UInt> bit_reversal<UInt>::arr_;
+
+ typedef bit_reversal<uint32_t> bit_reversal32;
+ typedef bit_reversal<uint64_t> bit_reversal64;
+
+#define TEST_32BIT( x ) \
+ TEST_F( bit_reversal32, x ) { test<cds::algo::bit_reversal::x>(); } \
+ TEST_F( bit_reversal32, x##_eq ) { test_eq<cds::algo::bit_reversal::x>(); }
+
+#define TEST_64BIT( x ) \
+ TEST_F( bit_reversal64, x ) { test<cds::algo::bit_reversal::x>(); } \
+ TEST_F( bit_reversal64, x##_eq ) { test_eq<cds::algo::bit_reversal::x>(); }
+
+ TEST_32BIT( swar )
+ TEST_32BIT( lookup )
+ TEST_32BIT( muldiv )
+
+ TEST_64BIT( swar )
+ TEST_64BIT( lookup )
+ TEST_64BIT( muldiv )
+
+} // namespace