2011/3/9 Chad Nelson <chad.thecomfychair@gmail.com>:
On Tue, 8 Mar 2011 22:57:19 +0100 Joachim Faulhaber <afojgo@googlemail.com> wrote:
- is_odd, is_even, sign, hex_digits, is_nan: These are all member functions with no same-named free function...which makes me wonder why these were chosen to be member functions while the likes of getbit, setbit, is_prime, etc. were chosen to be strictly free functions.
Because n1692, the paper presented to the C++ Standards Committee in 2004 that I based XInt's interface on, has them there.
Nope, I just looked at the paper, they are free standing functions there. And they are named without the is_ prefix:
<sigh> My statement was true when I originally wrote the code. I didn't realize that the later changes took it so far away from the original design. Thanks for the correction.
you are rehabilitated ;-) There are 3 papers N1692, N2020, N2143 on the topic and in the *latest* paper http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2143.pdf the functions is_odd(), is_even(), sign() are member functions just as in your implementation! So you adapted to the upcoming standard here. It would be better for you to add a reference to the latest paper to your docs and refer to it next time :) Cheers, Joachim -- Interval Container Library [Boost.Icl] http://www.joachim-faulhaber.de