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766 lines
24 KiB
766 lines
24 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
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// Copyright (c) 2011 The Bitcoin developers |
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// Distributed under the MIT/X11 software license, see the accompanying |
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// file license.txt or http://www.opensource.org/licenses/mit-license.php. |
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#ifndef BITCOIN_UINT256_H |
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#define BITCOIN_UINT256_H |
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#include "serialize.h" |
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#include <limits.h> |
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#include <string> |
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#include <vector> |
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#if defined(_MSC_VER) || defined(__BORLANDC__) |
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typedef __int64 int64; |
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typedef unsigned __int64 uint64; |
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#else |
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typedef long long int64; |
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typedef unsigned long long uint64; |
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#endif |
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#if defined(_MSC_VER) && _MSC_VER < 1300 |
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#define for if (false) ; else for |
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#endif |
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inline int Testuint256AdHoc(std::vector<std::string> vArg); |
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// We have to keep a separate base class without constructors |
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// so the compiler will let us use it in a union |
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template<unsigned int BITS> |
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class base_uint |
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{ |
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protected: |
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enum { WIDTH=BITS/32 }; |
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unsigned int pn[WIDTH]; |
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public: |
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bool operator!() const |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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if (pn[i] != 0) |
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return false; |
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return true; |
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} |
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const base_uint operator~() const |
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{ |
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base_uint ret; |
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for (int i = 0; i < WIDTH; i++) |
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ret.pn[i] = ~pn[i]; |
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return ret; |
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} |
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const base_uint operator-() const |
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{ |
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base_uint ret; |
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for (int i = 0; i < WIDTH; i++) |
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ret.pn[i] = ~pn[i]; |
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ret++; |
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return ret; |
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} |
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base_uint& operator=(uint64 b) |
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{ |
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pn[0] = (unsigned int)b; |
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pn[1] = (unsigned int)(b >> 32); |
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for (int i = 2; i < WIDTH; i++) |
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pn[i] = 0; |
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return *this; |
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} |
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base_uint& operator^=(const base_uint& b) |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] ^= b.pn[i]; |
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return *this; |
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} |
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base_uint& operator&=(const base_uint& b) |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] &= b.pn[i]; |
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return *this; |
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} |
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base_uint& operator|=(const base_uint& b) |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] |= b.pn[i]; |
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return *this; |
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} |
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base_uint& operator^=(uint64 b) |
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{ |
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pn[0] ^= (unsigned int)b; |
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pn[1] ^= (unsigned int)(b >> 32); |
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return *this; |
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} |
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base_uint& operator&=(uint64 b) |
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{ |
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pn[0] &= (unsigned int)b; |
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pn[1] &= (unsigned int)(b >> 32); |
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return *this; |
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} |
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base_uint& operator|=(uint64 b) |
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{ |
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pn[0] |= (unsigned int)b; |
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pn[1] |= (unsigned int)(b >> 32); |
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return *this; |
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} |
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base_uint& operator<<=(unsigned int shift) |
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{ |
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base_uint a(*this); |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] = 0; |
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int k = shift / 32; |
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shift = shift % 32; |
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for (int i = 0; i < WIDTH; i++) |
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{ |
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if (i+k+1 < WIDTH && shift != 0) |
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pn[i+k+1] |= (a.pn[i] >> (32-shift)); |
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if (i+k < WIDTH) |
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pn[i+k] |= (a.pn[i] << shift); |
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} |
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return *this; |
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} |
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base_uint& operator>>=(unsigned int shift) |
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{ |
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base_uint a(*this); |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] = 0; |
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int k = shift / 32; |
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shift = shift % 32; |
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for (int i = 0; i < WIDTH; i++) |
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{ |
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if (i-k-1 >= 0 && shift != 0) |
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pn[i-k-1] |= (a.pn[i] << (32-shift)); |
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if (i-k >= 0) |
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pn[i-k] |= (a.pn[i] >> shift); |
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} |
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return *this; |
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} |
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base_uint& operator+=(const base_uint& b) |
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{ |
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uint64 carry = 0; |
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for (int i = 0; i < WIDTH; i++) |
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{ |
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uint64 n = carry + pn[i] + b.pn[i]; |
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pn[i] = n & 0xffffffff; |
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carry = n >> 32; |
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} |
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return *this; |
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} |
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base_uint& operator-=(const base_uint& b) |
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{ |
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*this += -b; |
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return *this; |
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} |
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base_uint& operator+=(uint64 b64) |
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{ |
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base_uint b; |
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b = b64; |
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*this += b; |
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return *this; |
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} |
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base_uint& operator-=(uint64 b64) |
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{ |
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base_uint b; |
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b = b64; |
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*this += -b; |
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return *this; |
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} |
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base_uint& operator++() |
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{ |
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// prefix operator |
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int i = 0; |
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while (++pn[i] == 0 && i < WIDTH-1) |
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i++; |
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return *this; |
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} |
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const base_uint operator++(int) |
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{ |
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// postfix operator |
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const base_uint ret = *this; |
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++(*this); |
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return ret; |
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} |
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base_uint& operator--() |
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{ |
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// prefix operator |
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int i = 0; |
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while (--pn[i] == -1 && i < WIDTH-1) |
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i++; |
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return *this; |
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} |
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const base_uint operator--(int) |
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{ |
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// postfix operator |
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const base_uint ret = *this; |
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--(*this); |
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return ret; |
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} |
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friend inline bool operator<(const base_uint& a, const base_uint& b) |
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{ |
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for (int i = base_uint::WIDTH-1; i >= 0; i--) |
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{ |
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if (a.pn[i] < b.pn[i]) |
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return true; |
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else if (a.pn[i] > b.pn[i]) |
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return false; |
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} |
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return false; |
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} |
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friend inline bool operator<=(const base_uint& a, const base_uint& b) |
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{ |
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for (int i = base_uint::WIDTH-1; i >= 0; i--) |
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{ |
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if (a.pn[i] < b.pn[i]) |
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return true; |
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else if (a.pn[i] > b.pn[i]) |
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return false; |
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} |
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return true; |
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} |
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friend inline bool operator>(const base_uint& a, const base_uint& b) |
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{ |
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for (int i = base_uint::WIDTH-1; i >= 0; i--) |
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{ |
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if (a.pn[i] > b.pn[i]) |
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return true; |
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else if (a.pn[i] < b.pn[i]) |
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return false; |
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} |
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return false; |
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} |
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friend inline bool operator>=(const base_uint& a, const base_uint& b) |
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{ |
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for (int i = base_uint::WIDTH-1; i >= 0; i--) |
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{ |
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if (a.pn[i] > b.pn[i]) |
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return true; |
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else if (a.pn[i] < b.pn[i]) |
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return false; |
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} |
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return true; |
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} |
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friend inline bool operator==(const base_uint& a, const base_uint& b) |
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{ |
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for (int i = 0; i < base_uint::WIDTH; i++) |
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if (a.pn[i] != b.pn[i]) |
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return false; |
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return true; |
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} |
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friend inline bool operator==(const base_uint& a, uint64 b) |
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{ |
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if (a.pn[0] != (unsigned int)b) |
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return false; |
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if (a.pn[1] != (unsigned int)(b >> 32)) |
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return false; |
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for (int i = 2; i < base_uint::WIDTH; i++) |
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if (a.pn[i] != 0) |
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return false; |
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return true; |
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} |
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friend inline bool operator!=(const base_uint& a, const base_uint& b) |
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{ |
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return (!(a == b)); |
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} |
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friend inline bool operator!=(const base_uint& a, uint64 b) |
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{ |
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return (!(a == b)); |
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} |
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std::string GetHex() const |
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{ |
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char psz[sizeof(pn)*2 + 1]; |
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for (int i = 0; i < sizeof(pn); i++) |
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sprintf(psz + i*2, "%02x", ((unsigned char*)pn)[sizeof(pn) - i - 1]); |
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return std::string(psz, psz + sizeof(pn)*2); |
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} |
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void SetHex(const char* psz) |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] = 0; |
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// skip leading spaces |
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while (isspace(*psz)) |
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psz++; |
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// skip 0x |
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if (psz[0] == '0' && tolower(psz[1]) == 'x') |
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psz += 2; |
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// hex string to uint |
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static char phexdigit[256] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,1,2,3,4,5,6,7,8,9,0,0,0,0,0,0, 0,0xa,0xb,0xc,0xd,0xe,0xf,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0xa,0xb,0xc,0xd,0xe,0xf,0,0,0,0,0,0,0,0,0 }; |
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const char* pbegin = psz; |
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while (phexdigit[*psz] || *psz == '0') |
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psz++; |
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psz--; |
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unsigned char* p1 = (unsigned char*)pn; |
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unsigned char* pend = p1 + WIDTH * 4; |
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while (psz >= pbegin && p1 < pend) |
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{ |
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*p1 = phexdigit[(unsigned char)*psz--]; |
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if (psz >= pbegin) |
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{ |
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*p1 |= (phexdigit[(unsigned char)*psz--] << 4); |
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p1++; |
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} |
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} |
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} |
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void SetHex(const std::string& str) |
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{ |
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SetHex(str.c_str()); |
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} |
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std::string ToString() const |
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{ |
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return (GetHex()); |
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} |
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unsigned char* begin() |
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{ |
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return (unsigned char*)&pn[0]; |
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} |
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unsigned char* end() |
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{ |
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return (unsigned char*)&pn[WIDTH]; |
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} |
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unsigned int size() |
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{ |
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return sizeof(pn); |
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} |
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unsigned int GetSerializeSize(int nType=0, int nVersion=PROTOCOL_VERSION) const |
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{ |
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return sizeof(pn); |
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} |
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template<typename Stream> |
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void Serialize(Stream& s, int nType=0, int nVersion=PROTOCOL_VERSION) const |
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{ |
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s.write((char*)pn, sizeof(pn)); |
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} |
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template<typename Stream> |
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void Unserialize(Stream& s, int nType=0, int nVersion=PROTOCOL_VERSION) |
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{ |
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s.read((char*)pn, sizeof(pn)); |
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} |
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friend class uint160; |
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friend class uint256; |
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friend inline int Testuint256AdHoc(std::vector<std::string> vArg); |
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}; |
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typedef base_uint<160> base_uint160; |
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typedef base_uint<256> base_uint256; |
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// |
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// uint160 and uint256 could be implemented as templates, but to keep |
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// compile errors and debugging cleaner, they're copy and pasted. |
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// |
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////////////////////////////////////////////////////////////////////////////// |
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// |
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// uint160 |
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// |
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class uint160 : public base_uint160 |
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{ |
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public: |
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typedef base_uint160 basetype; |
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uint160() |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] = 0; |
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} |
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uint160(const basetype& b) |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] = b.pn[i]; |
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} |
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uint160& operator=(const basetype& b) |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] = b.pn[i]; |
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return *this; |
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} |
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uint160(uint64 b) |
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{ |
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pn[0] = (unsigned int)b; |
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pn[1] = (unsigned int)(b >> 32); |
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for (int i = 2; i < WIDTH; i++) |
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pn[i] = 0; |
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} |
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uint160& operator=(uint64 b) |
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{ |
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pn[0] = (unsigned int)b; |
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pn[1] = (unsigned int)(b >> 32); |
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for (int i = 2; i < WIDTH; i++) |
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pn[i] = 0; |
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return *this; |
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} |
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explicit uint160(const std::string& str) |
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{ |
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SetHex(str); |
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} |
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explicit uint160(const std::vector<unsigned char>& vch) |
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{ |
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if (vch.size() == sizeof(pn)) |
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memcpy(pn, &vch[0], sizeof(pn)); |
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else |
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*this = 0; |
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} |
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}; |
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inline bool operator==(const uint160& a, uint64 b) { return (base_uint160)a == b; } |
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inline bool operator!=(const uint160& a, uint64 b) { return (base_uint160)a != b; } |
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inline const uint160 operator<<(const base_uint160& a, unsigned int shift) { return uint160(a) <<= shift; } |
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inline const uint160 operator>>(const base_uint160& a, unsigned int shift) { return uint160(a) >>= shift; } |
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inline const uint160 operator<<(const uint160& a, unsigned int shift) { return uint160(a) <<= shift; } |
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inline const uint160 operator>>(const uint160& a, unsigned int shift) { return uint160(a) >>= shift; } |
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inline const uint160 operator^(const base_uint160& a, const base_uint160& b) { return uint160(a) ^= b; } |
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inline const uint160 operator&(const base_uint160& a, const base_uint160& b) { return uint160(a) &= b; } |
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inline const uint160 operator|(const base_uint160& a, const base_uint160& b) { return uint160(a) |= b; } |
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inline const uint160 operator+(const base_uint160& a, const base_uint160& b) { return uint160(a) += b; } |
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inline const uint160 operator-(const base_uint160& a, const base_uint160& b) { return uint160(a) -= b; } |
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inline bool operator<(const base_uint160& a, const uint160& b) { return (base_uint160)a < (base_uint160)b; } |
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inline bool operator<=(const base_uint160& a, const uint160& b) { return (base_uint160)a <= (base_uint160)b; } |
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inline bool operator>(const base_uint160& a, const uint160& b) { return (base_uint160)a > (base_uint160)b; } |
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inline bool operator>=(const base_uint160& a, const uint160& b) { return (base_uint160)a >= (base_uint160)b; } |
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inline bool operator==(const base_uint160& a, const uint160& b) { return (base_uint160)a == (base_uint160)b; } |
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inline bool operator!=(const base_uint160& a, const uint160& b) { return (base_uint160)a != (base_uint160)b; } |
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inline const uint160 operator^(const base_uint160& a, const uint160& b) { return (base_uint160)a ^ (base_uint160)b; } |
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inline const uint160 operator&(const base_uint160& a, const uint160& b) { return (base_uint160)a & (base_uint160)b; } |
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inline const uint160 operator|(const base_uint160& a, const uint160& b) { return (base_uint160)a | (base_uint160)b; } |
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inline const uint160 operator+(const base_uint160& a, const uint160& b) { return (base_uint160)a + (base_uint160)b; } |
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inline const uint160 operator-(const base_uint160& a, const uint160& b) { return (base_uint160)a - (base_uint160)b; } |
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inline bool operator<(const uint160& a, const base_uint160& b) { return (base_uint160)a < (base_uint160)b; } |
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inline bool operator<=(const uint160& a, const base_uint160& b) { return (base_uint160)a <= (base_uint160)b; } |
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inline bool operator>(const uint160& a, const base_uint160& b) { return (base_uint160)a > (base_uint160)b; } |
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inline bool operator>=(const uint160& a, const base_uint160& b) { return (base_uint160)a >= (base_uint160)b; } |
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inline bool operator==(const uint160& a, const base_uint160& b) { return (base_uint160)a == (base_uint160)b; } |
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inline bool operator!=(const uint160& a, const base_uint160& b) { return (base_uint160)a != (base_uint160)b; } |
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inline const uint160 operator^(const uint160& a, const base_uint160& b) { return (base_uint160)a ^ (base_uint160)b; } |
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inline const uint160 operator&(const uint160& a, const base_uint160& b) { return (base_uint160)a & (base_uint160)b; } |
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inline const uint160 operator|(const uint160& a, const base_uint160& b) { return (base_uint160)a | (base_uint160)b; } |
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inline const uint160 operator+(const uint160& a, const base_uint160& b) { return (base_uint160)a + (base_uint160)b; } |
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inline const uint160 operator-(const uint160& a, const base_uint160& b) { return (base_uint160)a - (base_uint160)b; } |
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inline bool operator<(const uint160& a, const uint160& b) { return (base_uint160)a < (base_uint160)b; } |
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inline bool operator<=(const uint160& a, const uint160& b) { return (base_uint160)a <= (base_uint160)b; } |
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inline bool operator>(const uint160& a, const uint160& b) { return (base_uint160)a > (base_uint160)b; } |
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inline bool operator>=(const uint160& a, const uint160& b) { return (base_uint160)a >= (base_uint160)b; } |
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inline bool operator==(const uint160& a, const uint160& b) { return (base_uint160)a == (base_uint160)b; } |
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inline bool operator!=(const uint160& a, const uint160& b) { return (base_uint160)a != (base_uint160)b; } |
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inline const uint160 operator^(const uint160& a, const uint160& b) { return (base_uint160)a ^ (base_uint160)b; } |
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inline const uint160 operator&(const uint160& a, const uint160& b) { return (base_uint160)a & (base_uint160)b; } |
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inline const uint160 operator|(const uint160& a, const uint160& b) { return (base_uint160)a | (base_uint160)b; } |
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inline const uint160 operator+(const uint160& a, const uint160& b) { return (base_uint160)a + (base_uint160)b; } |
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inline const uint160 operator-(const uint160& a, const uint160& b) { return (base_uint160)a - (base_uint160)b; } |
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////////////////////////////////////////////////////////////////////////////// |
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// |
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// uint256 |
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// |
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|
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class uint256 : public base_uint256 |
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{ |
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public: |
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typedef base_uint256 basetype; |
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uint256() |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] = 0; |
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} |
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|
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uint256(const basetype& b) |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] = b.pn[i]; |
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} |
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|
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uint256& operator=(const basetype& b) |
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{ |
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for (int i = 0; i < WIDTH; i++) |
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pn[i] = b.pn[i]; |
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return *this; |
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} |
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|
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uint256(uint64 b) |
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{ |
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pn[0] = (unsigned int)b; |
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pn[1] = (unsigned int)(b >> 32); |
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for (int i = 2; i < WIDTH; i++) |
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pn[i] = 0; |
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} |
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|
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uint256& operator=(uint64 b) |
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{ |
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pn[0] = (unsigned int)b; |
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pn[1] = (unsigned int)(b >> 32); |
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for (int i = 2; i < WIDTH; i++) |
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pn[i] = 0; |
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return *this; |
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} |
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explicit uint256(const std::string& str) |
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{ |
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SetHex(str); |
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} |
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explicit uint256(const std::vector<unsigned char>& vch) |
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{ |
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if (vch.size() == sizeof(pn)) |
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memcpy(pn, &vch[0], sizeof(pn)); |
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else |
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*this = 0; |
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} |
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}; |
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inline bool operator==(const uint256& a, uint64 b) { return (base_uint256)a == b; } |
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inline bool operator!=(const uint256& a, uint64 b) { return (base_uint256)a != b; } |
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inline const uint256 operator<<(const base_uint256& a, unsigned int shift) { return uint256(a) <<= shift; } |
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inline const uint256 operator>>(const base_uint256& a, unsigned int shift) { return uint256(a) >>= shift; } |
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inline const uint256 operator<<(const uint256& a, unsigned int shift) { return uint256(a) <<= shift; } |
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inline const uint256 operator>>(const uint256& a, unsigned int shift) { return uint256(a) >>= shift; } |
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inline const uint256 operator^(const base_uint256& a, const base_uint256& b) { return uint256(a) ^= b; } |
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inline const uint256 operator&(const base_uint256& a, const base_uint256& b) { return uint256(a) &= b; } |
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inline const uint256 operator|(const base_uint256& a, const base_uint256& b) { return uint256(a) |= b; } |
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inline const uint256 operator+(const base_uint256& a, const base_uint256& b) { return uint256(a) += b; } |
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inline const uint256 operator-(const base_uint256& a, const base_uint256& b) { return uint256(a) -= b; } |
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inline bool operator<(const base_uint256& a, const uint256& b) { return (base_uint256)a < (base_uint256)b; } |
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inline bool operator<=(const base_uint256& a, const uint256& b) { return (base_uint256)a <= (base_uint256)b; } |
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inline bool operator>(const base_uint256& a, const uint256& b) { return (base_uint256)a > (base_uint256)b; } |
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inline bool operator>=(const base_uint256& a, const uint256& b) { return (base_uint256)a >= (base_uint256)b; } |
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inline bool operator==(const base_uint256& a, const uint256& b) { return (base_uint256)a == (base_uint256)b; } |
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inline bool operator!=(const base_uint256& a, const uint256& b) { return (base_uint256)a != (base_uint256)b; } |
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inline const uint256 operator^(const base_uint256& a, const uint256& b) { return (base_uint256)a ^ (base_uint256)b; } |
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inline const uint256 operator&(const base_uint256& a, const uint256& b) { return (base_uint256)a & (base_uint256)b; } |
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inline const uint256 operator|(const base_uint256& a, const uint256& b) { return (base_uint256)a | (base_uint256)b; } |
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inline const uint256 operator+(const base_uint256& a, const uint256& b) { return (base_uint256)a + (base_uint256)b; } |
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inline const uint256 operator-(const base_uint256& a, const uint256& b) { return (base_uint256)a - (base_uint256)b; } |
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|
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inline bool operator<(const uint256& a, const base_uint256& b) { return (base_uint256)a < (base_uint256)b; } |
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inline bool operator<=(const uint256& a, const base_uint256& b) { return (base_uint256)a <= (base_uint256)b; } |
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inline bool operator>(const uint256& a, const base_uint256& b) { return (base_uint256)a > (base_uint256)b; } |
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inline bool operator>=(const uint256& a, const base_uint256& b) { return (base_uint256)a >= (base_uint256)b; } |
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inline bool operator==(const uint256& a, const base_uint256& b) { return (base_uint256)a == (base_uint256)b; } |
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inline bool operator!=(const uint256& a, const base_uint256& b) { return (base_uint256)a != (base_uint256)b; } |
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inline const uint256 operator^(const uint256& a, const base_uint256& b) { return (base_uint256)a ^ (base_uint256)b; } |
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inline const uint256 operator&(const uint256& a, const base_uint256& b) { return (base_uint256)a & (base_uint256)b; } |
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inline const uint256 operator|(const uint256& a, const base_uint256& b) { return (base_uint256)a | (base_uint256)b; } |
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inline const uint256 operator+(const uint256& a, const base_uint256& b) { return (base_uint256)a + (base_uint256)b; } |
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inline const uint256 operator-(const uint256& a, const base_uint256& b) { return (base_uint256)a - (base_uint256)b; } |
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|
|
inline bool operator<(const uint256& a, const uint256& b) { return (base_uint256)a < (base_uint256)b; } |
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inline bool operator<=(const uint256& a, const uint256& b) { return (base_uint256)a <= (base_uint256)b; } |
|
inline bool operator>(const uint256& a, const uint256& b) { return (base_uint256)a > (base_uint256)b; } |
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inline bool operator>=(const uint256& a, const uint256& b) { return (base_uint256)a >= (base_uint256)b; } |
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inline bool operator==(const uint256& a, const uint256& b) { return (base_uint256)a == (base_uint256)b; } |
|
inline bool operator!=(const uint256& a, const uint256& b) { return (base_uint256)a != (base_uint256)b; } |
|
inline const uint256 operator^(const uint256& a, const uint256& b) { return (base_uint256)a ^ (base_uint256)b; } |
|
inline const uint256 operator&(const uint256& a, const uint256& b) { return (base_uint256)a & (base_uint256)b; } |
|
inline const uint256 operator|(const uint256& a, const uint256& b) { return (base_uint256)a | (base_uint256)b; } |
|
inline const uint256 operator+(const uint256& a, const uint256& b) { return (base_uint256)a + (base_uint256)b; } |
|
inline const uint256 operator-(const uint256& a, const uint256& b) { return (base_uint256)a - (base_uint256)b; } |
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|
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inline int Testuint256AdHoc(std::vector<std::string> vArg) |
|
{ |
|
uint256 g(0); |
|
|
|
|
|
printf("%s\n", g.ToString().c_str()); |
|
g--; printf("g--\n"); |
|
printf("%s\n", g.ToString().c_str()); |
|
g--; printf("g--\n"); |
|
printf("%s\n", g.ToString().c_str()); |
|
g++; printf("g++\n"); |
|
printf("%s\n", g.ToString().c_str()); |
|
g++; printf("g++\n"); |
|
printf("%s\n", g.ToString().c_str()); |
|
g++; printf("g++\n"); |
|
printf("%s\n", g.ToString().c_str()); |
|
g++; printf("g++\n"); |
|
printf("%s\n", g.ToString().c_str()); |
|
|
|
|
|
|
|
uint256 a(7); |
|
printf("a=7\n"); |
|
printf("%s\n", a.ToString().c_str()); |
|
|
|
uint256 b; |
|
printf("b undefined\n"); |
|
printf("%s\n", b.ToString().c_str()); |
|
int c = 3; |
|
|
|
a = c; |
|
a.pn[3] = 15; |
|
printf("%s\n", a.ToString().c_str()); |
|
uint256 k(c); |
|
|
|
a = 5; |
|
a.pn[3] = 15; |
|
printf("%s\n", a.ToString().c_str()); |
|
b = 1; |
|
b <<= 52; |
|
|
|
a |= b; |
|
|
|
a ^= 0x500; |
|
|
|
printf("a %s\n", a.ToString().c_str()); |
|
|
|
a = a | b | (uint256)0x1000; |
|
|
|
|
|
printf("a %s\n", a.ToString().c_str()); |
|
printf("b %s\n", b.ToString().c_str()); |
|
|
|
a = 0xfffffffe; |
|
a.pn[4] = 9; |
|
|
|
printf("%s\n", a.ToString().c_str()); |
|
a++; |
|
printf("%s\n", a.ToString().c_str()); |
|
a++; |
|
printf("%s\n", a.ToString().c_str()); |
|
a++; |
|
printf("%s\n", a.ToString().c_str()); |
|
a++; |
|
printf("%s\n", a.ToString().c_str()); |
|
|
|
a--; |
|
printf("%s\n", a.ToString().c_str()); |
|
a--; |
|
printf("%s\n", a.ToString().c_str()); |
|
a--; |
|
printf("%s\n", a.ToString().c_str()); |
|
uint256 d = a--; |
|
printf("%s\n", d.ToString().c_str()); |
|
printf("%s\n", a.ToString().c_str()); |
|
a--; |
|
printf("%s\n", a.ToString().c_str()); |
|
a--; |
|
printf("%s\n", a.ToString().c_str()); |
|
|
|
d = a; |
|
|
|
printf("%s\n", d.ToString().c_str()); |
|
for (int i = uint256::WIDTH-1; i >= 0; i--) printf("%08x", d.pn[i]); printf("\n"); |
|
|
|
uint256 neg = d; |
|
neg = ~neg; |
|
printf("%s\n", neg.ToString().c_str()); |
|
|
|
|
|
uint256 e = uint256("0xABCDEF123abcdef12345678909832180000011111111"); |
|
printf("\n"); |
|
printf("%s\n", e.ToString().c_str()); |
|
|
|
|
|
printf("\n"); |
|
uint256 x1 = uint256("0xABCDEF123abcdef12345678909832180000011111111"); |
|
uint256 x2; |
|
printf("%s\n", x1.ToString().c_str()); |
|
for (int i = 0; i < 270; i += 4) |
|
{ |
|
x2 = x1 << i; |
|
printf("%s\n", x2.ToString().c_str()); |
|
} |
|
|
|
printf("\n"); |
|
printf("%s\n", x1.ToString().c_str()); |
|
for (int i = 0; i < 270; i += 4) |
|
{ |
|
x2 = x1; |
|
x2 >>= i; |
|
printf("%s\n", x2.ToString().c_str()); |
|
} |
|
|
|
|
|
for (int i = 0; i < 100; i++) |
|
{ |
|
uint256 k = (~uint256(0) >> i); |
|
printf("%s\n", k.ToString().c_str()); |
|
} |
|
|
|
for (int i = 0; i < 100; i++) |
|
{ |
|
uint256 k = (~uint256(0) << i); |
|
printf("%s\n", k.ToString().c_str()); |
|
} |
|
|
|
return (0); |
|
} |
|
|
|
#endif
|
|
|