/*-----------------------------------------------------------------------------+ Author: Joachim Faulhaber Copyright (c) 2009-2009: Joachim Faulhaber +------------------------------------------------------------------------------+ Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENCE.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +-----------------------------------------------------------------------------*/ namespace mini // minimal implementations for example projects { // A meta implementation of an the logarithm function on integrals template <size_t Argument, size_t Base=2> struct log_{ enum { value = 1 + log_<Argument/Base, Base>::value }; }; template <size_t Base>struct log_<1, Base>{ enum { value = 0 }; }; template <size_t Base>struct log_<0, Base>{ enum { value = 0 }; }; template <size_t Argument> struct log2_{ enum { value = log_<Argument, 2>::value }; }; template <size_t Argument> struct power2_{ enum { value = 1 << Argument }; }; } // namespace mini