id summary reporter owner description type status milestone component version severity resolution keywords cc 9243 Subopimal bitwise or (with bytes) Domagoj Šarić John Maddock "I'd expect oring with a byte (or any integral builtin type smaller or equal in size to a static, unchecked, unsigned cpp_int) to produce a single instruction, yet it evaluates to a call to a fairly fat function... ps. I'm doing number<> big_int; unsigned char const * p_data; while () { big_int |= *p_data++; big_int <<= 8; }" Bugs closed To Be Determined multiprecision Boost 1.54.0 Optimization fixed