/////////////////////////////////////////////////////////////// // Copyright 2012 John Maddock. Distributed under the Boost // Software License, Version 1.0. (See accompanying file // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_ // // Compare arithmetic results using fixed_int to GMP results. // #ifdef _MSC_VER # define _SCL_SECURE_NO_WARNINGS #endif //[mixed_eg #include int main() { using namespace boost::multiprecision; boost::uint64_t i = (std::numeric_limits::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::max)(); std::cout << std::hex << std::showbase << multiply(ui256, ui128, ui128) << std::endl; return 0; } //] /* Program output: //[mixed_output 0xffffffffffffffff 0x10000000000000000 0xFFFFFFFFFFFFFFFE0000000000000001 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE00000000000000000000000000000001 //] */