id summary reporter owner description type status milestone component version severity resolution keywords cc 8145 multiprecision, negative integer zero Stepan Podoskin John Maddock "Here is me again :) Introduced in revision 83080: {{{ #include #include using boost::multiprecision::cpp_int; int main() { cpp_int c = -1 + cpp_int(0) + 1; if( c != 0 ) std::cout << c; // c = -0 return 0; } }}}" Bugs closed To Be Determined multiprecision Boost Development Trunk Problem fixed