Hi Paul,

So I've added two ifs, but think that the design of the functions are better.

[0] - https://svn.boost.org/trac/boost/browser/sandbox/SOC/2010/bits_and_ints/boost/integer/ilog2.hpp?rev=64198

Looks more promising, but you have a typo in the error message ;-)

retunrning -1",

Oops!

and maybe you need to document some examples of using policies that don’t bother to check or at least do so quietly (your original idea), just quietly return -1, produce a message and return -1, or message and then throw an exception?

But maybe it’s a TODO ;-)

Thanks for you reply. It's a nice idea to document the examples.
You are also welcome to comment in this thread on Boost-Dev ML ( http://old.nabble.com/Bits-and-Ints%3A-Intention-Request-td29166075.html ) about my SoC project.

Paul

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Paul A. Bristow

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