diff -r 000000000000 -r bde4ae8d615e os/ossrv/ossrv_pub/boost_apis/boost/detail/dynamic_bitset.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/detail/dynamic_bitset.hpp Fri Jun 15 03:10:57 2012 +0200 @@ -0,0 +1,168 @@ +// -------------------------------------------------- +// +// (C) Copyright Chuck Allison and Jeremy Siek 2001 - 2002. +// (C) Copyright Gennaro Prota 2003 - 2004. +// +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// +// ----------------------------------------------------------- + +// See http://www.boost.org/libs/dynamic_bitset for documentation. + + +#ifndef BOOST_DETAIL_DYNAMIC_BITSET_HPP +#define BOOST_DETAIL_DYNAMIC_BITSET_HPP + +#include // for std::size_t +#include "boost/config.hpp" +#include "boost/detail/workaround.hpp" +//#include "boost/static_assert.hpp" // gps + + +namespace boost { + + namespace detail { + + // Gives (read-)access to the object representation + // of an object of type T (3.9p4). CANNOT be used + // on a base sub-object + // + template + inline const unsigned char * object_representation (T* p) + { + return static_cast(static_cast(p)); + } + + + // ------- count function implementation -------------- + + namespace dynamic_bitset_count_impl { + + typedef unsigned char byte_type; + + enum mode { access_by_bytes, access_by_blocks }; + + template struct mode_to_type {}; + + // the table: wrapped in a class template, so + // that it is only instantiated if/when needed + // + template + struct count_table { static const byte_type table[]; }; + + template <> + struct count_table { /* no table */ }; + + + const unsigned int table_width = 8; + template + const byte_type count_table::table[] = + { + // Automatically generated by GPTableGen.exe v.1.0 + // + 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, + 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, + 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, + 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, + 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, + 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8 + }; + + + // overload for access by bytes + // + + template + inline std::size_t do_count(Iterator first, std::size_t length, + int /*dummy param*/, + mode_to_type* ) + { + std::size_t num = 0; + if (length) + { + const byte_type * p = object_representation(&*first); + length *= sizeof(*first); + + do { + num += count_table<>::table[*p]; + ++p; + --length; + + } while (length); + } + + return num; + } + + + // overload for access by blocks + // + template + inline std::size_t do_count(Iterator first, std::size_t length, ValueType, + mode_to_type*) + { + std::size_t num = 0; + while (length){ + + ValueType value = *first; + while (value) { + num += count_table<>::table[value & ((1u<>= table_width; + } + + ++first; + --length; + } + + return num; + } + + + } // dynamic_bitset_count_impl + // ------------------------------------------------------- + + + // Some library implementations simply return a dummy + // value such as + // + // size_type(-1) / sizeof(T) + // + // from vector<>::max_size. This tries to get out more + // meaningful info. + // + template + typename T::size_type vector_max_size_workaround(const T & v) { + + typedef typename T::allocator_type allocator_type; + + const typename allocator_type::size_type alloc_max = + v.get_allocator().max_size(); + const typename T::size_type container_max = v.max_size(); + + return alloc_max < container_max? + alloc_max : + container_max; + } + + // for static_asserts + template + struct dynamic_bitset_allowed_block_type { + enum { value = (T(-1) > 0) }; // ensure T has no sign + }; + + template <> + struct dynamic_bitset_allowed_block_type { + enum { value = false }; + }; + + + } // namespace detail + +} // namespace boost + +#endif // include guard +