diff options
Diffstat (limited to 'src/boost/libs/multiprecision/example/mixed_integer_arithmetic.cpp')
-rw-r--r-- | src/boost/libs/multiprecision/example/mixed_integer_arithmetic.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/boost/libs/multiprecision/example/mixed_integer_arithmetic.cpp b/src/boost/libs/multiprecision/example/mixed_integer_arithmetic.cpp new file mode 100644 index 00000000..c1ab5b5c --- /dev/null +++ b/src/boost/libs/multiprecision/example/mixed_integer_arithmetic.cpp @@ -0,0 +1,55 @@ +/////////////////////////////////////////////////////////////// +// Copyright 2012 John Maddock. Distributed under the Boost +// Software License, Version 1.0. (See accompanying file +// LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt + +// +// Compare arithmetic results using fixed_int to GMP results. +// + +#ifdef _MSC_VER +# define _SCL_SECURE_NO_WARNINGS +#endif + +//[mixed_eg +#include <boost/multiprecision/cpp_int.hpp> + +int main() +{ + using namespace boost::multiprecision; + + boost::uint64_t i = (std::numeric_limits<boost::uint64_t>::max)(); + boost::uint64_t j = 1; + + uint128_t ui128; + uint256_t ui256; + // + // Start by performing arithmetic on 64-bit integers to yield 128-bit results: + // + std::cout << std::hex << std::showbase << i << std::endl; + std::cout << std::hex << std::showbase << add(ui128, i, j) << std::endl; + std::cout << std::hex << std::showbase << multiply(ui128, i, i) << std::endl; + // + // The try squaring a 128-bit integer to yield a 256-bit result: + // + ui128 = (std::numeric_limits<uint128_t>::max)(); + std::cout << std::hex << std::showbase << multiply(ui256, ui128, ui128) << std::endl; + + return 0; +} +//] + +/* + +Program output: + +//[mixed_output + +0xffffffffffffffff +0x10000000000000000 +0xFFFFFFFFFFFFFFFE0000000000000001 +0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE00000000000000000000000000000001 + +//] +*/ + |