Hello. Fixed point computation appears too often on an embedded systems, but it seems that implement bug free class too complex (i found a lots of implementations in internet but all of them have 2 issues - either they have an computations bugs and precision loss either they not template). That's why it will be good if in Boost appear standart fixed point library. I assume, that interface should look like these: template< typename T, int N > class fixed_point { .. }; where T - set for us bitness of the variable, and signed/unsigned flag, and N - a number of bits for fractional part of number. of course, for T - best to use types like: uint32, int32 and so on.. or change interface on something like: template< bool signed, int number_all_bits, int number_fract_bits > class fixed_point { .. };