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30 lines
964 B
C++
30 lines
964 B
C++
//
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// Copyright (C) 2018 James E. King III
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//
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// Permission to copy, use, modify, sell and distribute this software
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// is granted provided this copyright notice appears in all copies.
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// This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "boost/core/lightweight_test.hpp"
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#include "boost/cstdint.hpp"
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#include "boost/dynamic_bitset/detail/lowest_bit.hpp"
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int
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main( int, char *[] )
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{
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for ( boost::int32_t i = 1; i < 32; ++i ) {
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BOOST_TEST_EQ( i, boost::detail::lowest_bit( 1u << i ) );
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}
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BOOST_TEST_EQ( 2, boost::detail::lowest_bit( 123456788 ) );
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BOOST_TEST_EQ( 30, boost::detail::lowest_bit( static_cast< boost::int64_t >( 1507208177123328 ) ) );
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return boost::report_errors();
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}
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