id summary reporter owner description type status milestone component version severity resolution keywords cc 12195 cpp_bin_float infinity does not change sign when multiplied/divided by negative number Michael Shatz John Maddock "When cpp_bin_float number with value=infinity multiplied or divided by negative number the product keeps the previous sign of infinity instead of changing the sign to the opposite. Platform: Mingw, gcc 5.3.0, x64. All optimization levels. Library version: both 1.60.0 and the newest files from gnuhub " Bugs closed To Be Determined multiprecision Boost 1.60.0 Problem fixed