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101 lines
3.2 KiB
101 lines
3.2 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file Common.h
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*
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* Very common stuff (i.e. that every other header needs except vector_ref.h).
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*/
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#pragma once
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// way to many uint to size_t warnings in 32 bit build
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#ifdef _M_IX86
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#pragma warning(disable:4244)
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#endif
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#ifdef _MSC_VER
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#define _ALLOW_KEYWORD_MACROS
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#define noexcept throw()
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#endif
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#include <map>
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#include <vector>
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#include <set>
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#include <boost/multiprecision/cpp_int.hpp>
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#include "vector_ref.h"
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// CryptoPP defines byte in the global namespace, so so must we.
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using byte = uint8_t;
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// Quote a given token stream to turn it into a string.
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#define ETH_QUOTED_HELPER(s) #s
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#define ETH_QUOTED(s) ETH_QUOTED_HELPER(s)
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namespace eth
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{
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extern char const* EthVersion;
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// Binary data types.
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using bytes = std::vector<byte>;
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using bytesRef = vector_ref<byte>;
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using bytesConstRef = vector_ref<byte const>;
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// Numeric types.
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using bigint = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<>>;
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using u256 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<256, 256, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>;
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using s256 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<256, 256, boost::multiprecision::signed_magnitude, boost::multiprecision::unchecked, void>>;
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using u160 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<160, 160, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>;
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using s160 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<160, 160, boost::multiprecision::signed_magnitude, boost::multiprecision::unchecked, void>>;
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using uint = uint64_t;
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using sint = int64_t;
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using u256s = std::vector<u256>;
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using u160s = std::vector<u160>;
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using u256Set = std::set<u256>;
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using u160Set = std::set<u160>;
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// Map types.
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using StringMap = std::map<std::string, std::string>;
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using u256Map = std::map<u256, u256>;
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using HexMap = std::map<bytes, std::string>;
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// Null/Invalid values for convenience.
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static const u256 Invalid256 = ~(u256)0;
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static const bytes NullBytes;
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static const std::map<u256, u256> EmptyMapU256U256;
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inline s256 u2s(u256 _u)
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{
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static const bigint c_end = (bigint)1 << 256;
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static const u256 c_send = (u256)1 << 255;
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if (_u < c_send)
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return (s256)_u;
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else
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return (s256)-(c_end - _u);
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}
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inline u256 s2u(s256 _u)
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{
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static const bigint c_end = (bigint)1 << 256;
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if (_u >= 0)
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return (u256)_u;
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else
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return (u256)(c_end + _u);
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}
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}
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