hex_policy.hpp

Go to the documentation of this file.

//---------------------------------------------------------------------------//
// Copyright (c) 2018-2020 Mikhail Komarov <nemo@nil.foundation>
//
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//---------------------------------------------------------------------------//
 
#ifndef CRYPTO3_HEX_POLICY_HPP
#define CRYPTO3_HEX_POLICY_HPP
 
#include <array>
 
#include <boost/integer.hpp>
 
#include <nil/crypto3/detail/inline_variable.hpp>
 
namespace nil {
    namespace crypto3 {
        namespace codec {
            namespace mode {
                struct upper {
                    typedef const char *constants_type;
                    CRYPTO3_INLINE_VARIABLE(constants_type, constants, ("0123456789ABCDEF"));
                };
 
                struct lower {
                    typedef const char *constants_type;
                    CRYPTO3_INLINE_VARIABLE(constants_type, constants, ("0123456789abcdef"));
                };
            }    // namespace mode
 
            namespace detail {
                template<typename Mode>
                struct hex_policy {
                    typedef Mode mode_type;
 
                    typedef typename boost::uint_t<CHAR_BIT>::exact byte_type;
 
                    typedef typename mode_type::constants_type constants_type;
                    CRYPTO3_INLINE_VARIABLE(constants_type, constants, (mode_type::constants()));
                    constexpr static const std::size_t decoded_value_bits = CHAR_BIT;
                    typedef byte_type decoded_value_type;
 
                    constexpr static const std::size_t encoded_value_bits = CHAR_BIT;
                    typedef byte_type encoded_value_type;
 
                    constexpr static const std::size_t decoded_block_values = 1;
                    constexpr static const std::size_t decoded_block_bits = decoded_value_bits * decoded_block_values;
                    typedef std::array<decoded_value_type, decoded_block_values> decoded_block_type;
 
                    constexpr static const std::size_t encoded_block_values = 2;
                    constexpr static const std::uint8_t encoded_block_bits = encoded_block_values * encoded_value_bits;
                    typedef std::array<encoded_value_type, encoded_block_values> encoded_block_type;
                };
            }    // namespace detail
        }        // namespace codec
    }            // namespace crypto3
}    // namespace nil
 
#endif    // CRYPTO3_HEX_POLICY_HPP