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63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
// Copyright (c) 2006-2018 Maxim Khizhinsky
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <cds_test/ext_gtest.h>
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#include <cds/algo/bit_reversal.h>
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namespace {
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template <typename UInt>
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class bit_reversal: public ::testing::Test
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{
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typedef UInt uint_type;
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#ifdef CDS_DEBUG
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static size_t const c_size = 1'000'000;
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#else
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static size_t const c_size = 50'000'000;
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#endif
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public:
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template <typename Algo>
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void test()
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{
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Algo f;
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for ( uint_type i = 0; i < c_size; ++i ) {
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EXPECT_EQ( i, f( f( i ) ));
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EXPECT_EQ( ~i, f( f( ~i ) ));
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}
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}
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template <typename Algo>
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void test_eq()
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{
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Algo f;
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for ( uint_type i = 0; i < c_size; ++i ) {
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EXPECT_EQ( cds::algo::bit_reversal::swar()( i ), f( i ) ) << "i=" << i;
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EXPECT_EQ( cds::algo::bit_reversal::swar()( ~i ), f( ~i ) ) << "~i=" << ~i;
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}
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}
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};
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typedef bit_reversal<uint32_t> bit_reversal32;
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typedef bit_reversal<uint64_t> bit_reversal64;
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#define TEST_32BIT( x ) \
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TEST_F( bit_reversal32, x ) { test<cds::algo::bit_reversal::x>(); } \
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TEST_F( bit_reversal32, x##_eq ) { test_eq<cds::algo::bit_reversal::x>(); }
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#define TEST_64BIT( x ) \
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TEST_F( bit_reversal64, x ) { test<cds::algo::bit_reversal::x>(); } \
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TEST_F( bit_reversal64, x##_eq ) { test_eq<cds::algo::bit_reversal::x>(); }
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TEST_32BIT( swar )
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TEST_32BIT( lookup )
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TEST_32BIT( muldiv )
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TEST_64BIT( swar )
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TEST_64BIT( lookup )
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TEST_64BIT( muldiv )
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} // namespace
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