Re: [Boost-users] max value by the number of bits

2013/2/5 Christian Henning

Hi there,

is there a general template for calculating the max value by the number of bits. GIL right now uses the following template:

template <int K> struct unsigned_integral_max_value : public mpl::integral_c {};

This code gives me some compiler errors with clang 3.2. for K = 31, for instance. Ideally I would like to take K up to 64.

A small fix gets me up to K = 63

template <int K> struct unsigned_integral_max_value : public mpl::integral_c {};

Is there a better way in boost?

Try boost::low_bits_mask_t http://tinyurl.com/bcy22xf HTH