id summary reporter owner description type status milestone component version severity resolution keywords cc 5761 warning im MPL source anonymous Aleksey Gurtovoy "I get warning in Visual C++ 10, 32 bit mode (strangely, 64 bit mode is warning free): p:\app\3pp\boost\mpl\print.hpp(51): warning C4308: negative integral constant converted to unsigned type It is line: enum { n = sizeof(T) + -1 }; Changing it into: enum { n = sizeof(T) - 1 }; got rid the warning." Bugs closed To Be Determined mpl Boost 1.47.0 Cosmetic invalid