56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
///////////////////////////////////////////////////////////////
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// Copyright 2012 John Maddock. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
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//
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// Compare arithmetic results using fixed_int to GMP results.
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//
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#ifdef _MSC_VER
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# define _SCL_SECURE_NO_WARNINGS
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#endif
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//[mixed_eg
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#include <boost/multiprecision/cpp_int.hpp>
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int main()
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{
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using namespace boost::multiprecision;
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boost::uint64_t i = (std::numeric_limits<boost::uint64_t>::max)();
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boost::uint64_t j = 1;
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uint128_t ui128;
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uint256_t ui256;
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//
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// Start by performing arithmetic on 64-bit integers to yield 128-bit results:
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//
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std::cout << std::hex << std::showbase << i << std::endl;
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std::cout << std::hex << std::showbase << add(ui128, i, j) << std::endl;
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std::cout << std::hex << std::showbase << multiply(ui128, i, i) << std::endl;
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//
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// The try squaring a 128-bit integer to yield a 256-bit result:
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//
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ui128 = (std::numeric_limits<uint128_t>::max)();
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std::cout << std::hex << std::showbase << multiply(ui256, ui128, ui128) << std::endl;
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return 0;
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}
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//]
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/*
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Program output:
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//[mixed_output
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0xffffffffffffffff
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0x10000000000000000
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0xFFFFFFFFFFFFFFFE0000000000000001
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0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE00000000000000000000000000000001
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//]
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*/
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