#ifndef BOOST_TEST_AND_HPP #define BOOST_TEST_AND_HPP // Copyright (c) 2015 Robert Ramey // // 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_0.txt) #include #include #include template bool test_and( T1 v1, T2 v2, const char *av1, const char *av2, char expected_result ){ std::cout << "testing"<< std::endl; { safe_t t1 = v1; using result_type = decltype(t1 & v2); std::cout << "safe<" << av1 << "> & " << av2 << " -> "; static_assert( boost::safe_numerics::is_safe >::value, "safe_t not safe!" ); static_assert( boost::safe_numerics::is_safe::value, "Expression failed to return safe type" ); try{ // use auto to avoid checking assignment. auto result = t1 & v2; std::cout << make_result_display(result); if(expected_result == 'x'){ std::cout << " ! = "<< av1 << " & " << av2 << " failed to detect error in and operation " << std::endl; t1 & v2; return false; } std::cout << std::endl; } catch(const std::exception &){ if(expected_result == '.'){ std::cout << " == "<< av1 << " & " << av2 << " erroneously detected error in and operation " << std::endl; try{ t1 & v2; } catch(const std::exception &){} return false; } } } { safe_t t2 = v2; using result_type = decltype(v1 & t2); std::cout << av1 << " & " << "safe<" << av2 << "> -> "; static_assert( boost::safe_numerics::is_safe >::value, "safe_t not safe!" ); static_assert( boost::safe_numerics::is_safe::value, "Expression failed to return safe type" ); try{ // use auto to avoid checking assignment. auto result = v1 & t2; std::cout << make_result_display(result); if(expected_result == 'x'){ std::cout << " ! = "<< av1 << " & " << av2 << " failed to detect error in and operation " << std::endl; v1 & t2; return false; } std::cout << std::endl; } catch(const std::exception &){ if(expected_result == '.'){ std::cout << " == "<< av1 << " & " << av2 << " erroneously detected error in and operation " << std::endl; try{ v1 & t2; } catch(const std::exception &){} return false; } } } { safe_t t1 = v1; safe_t t2 = v2; using result_type = decltype(t1 & t2); std::cout << "safe<" << av1 << "> & " << "safe<" << av2 << "> -> "; static_assert( boost::safe_numerics::is_safe::value, "Expression failed to return safe type" ); try{ // use auto to avoid checking assignment. auto result = t1 & t2; std::cout << make_result_display(result); if(expected_result == 'x'){ std::cout << " != "<< av1 << " & " << av2 << " failed to detect error in and operation" << std::endl; t1 & t2; return false; } std::cout << std::endl; } catch(const std::exception &){ if(expected_result == '.'){ std::cout << " == "<< av1 << " & " << av2 << " erroneously detected error in and operation" << std::endl; try{ t1 & t2; } catch(const std::exception &){} return false; } } } return true; // correct result } #endif // BOOST_TEST_AND_HPP