758 lines
24 KiB
C++
758 lines
24 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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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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#include <limits.h>
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#include <string>
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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(vector<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 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=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=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=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(vector<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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//
|
|
// uint256
|
|
//
|
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|
|
class uint256 : public base_uint256
|
|
{
|
|
public:
|
|
typedef base_uint256 basetype;
|
|
|
|
uint256()
|
|
{
|
|
for (int i = 0; i < WIDTH; i++)
|
|
pn[i] = 0;
|
|
}
|
|
|
|
uint256(const basetype& b)
|
|
{
|
|
for (int i = 0; i < WIDTH; i++)
|
|
pn[i] = b.pn[i];
|
|
}
|
|
|
|
uint256& operator=(const basetype& b)
|
|
{
|
|
for (int i = 0; i < WIDTH; i++)
|
|
pn[i] = b.pn[i];
|
|
return *this;
|
|
}
|
|
|
|
uint256(uint64 b)
|
|
{
|
|
pn[0] = (unsigned int)b;
|
|
pn[1] = (unsigned int)(b >> 32);
|
|
for (int i = 2; i < WIDTH; i++)
|
|
pn[i] = 0;
|
|
}
|
|
|
|
uint256& operator=(uint64 b)
|
|
{
|
|
pn[0] = (unsigned int)b;
|
|
pn[1] = (unsigned int)(b >> 32);
|
|
for (int i = 2; i < WIDTH; i++)
|
|
pn[i] = 0;
|
|
return *this;
|
|
}
|
|
|
|
explicit uint256(const std::string& str)
|
|
{
|
|
SetHex(str);
|
|
}
|
|
|
|
explicit uint256(const std::vector<unsigned char>& vch)
|
|
{
|
|
if (vch.size() == sizeof(pn))
|
|
memcpy(pn, &vch[0], sizeof(pn));
|
|
else
|
|
*this = 0;
|
|
}
|
|
};
|
|
|
|
inline bool operator==(const uint256& a, uint64 b) { return (base_uint256)a == b; }
|
|
inline bool operator!=(const uint256& a, uint64 b) { return (base_uint256)a != b; }
|
|
inline const uint256 operator<<(const base_uint256& a, unsigned int shift) { return uint256(a) <<= shift; }
|
|
inline const uint256 operator>>(const base_uint256& a, unsigned int shift) { return uint256(a) >>= shift; }
|
|
inline const uint256 operator<<(const uint256& a, unsigned int shift) { return uint256(a) <<= shift; }
|
|
inline const uint256 operator>>(const uint256& a, unsigned int shift) { return uint256(a) >>= shift; }
|
|
|
|
inline const uint256 operator^(const base_uint256& a, const base_uint256& b) { return uint256(a) ^= b; }
|
|
inline const uint256 operator&(const base_uint256& a, const base_uint256& b) { return uint256(a) &= b; }
|
|
inline const uint256 operator|(const base_uint256& a, const base_uint256& b) { return uint256(a) |= b; }
|
|
inline const uint256 operator+(const base_uint256& a, const base_uint256& b) { return uint256(a) += b; }
|
|
inline const uint256 operator-(const base_uint256& a, const base_uint256& b) { return uint256(a) -= b; }
|
|
|
|
inline bool operator<(const base_uint256& a, const uint256& b) { return (base_uint256)a < (base_uint256)b; }
|
|
inline bool operator<=(const base_uint256& a, const uint256& b) { return (base_uint256)a <= (base_uint256)b; }
|
|
inline bool operator>(const base_uint256& a, const uint256& b) { return (base_uint256)a > (base_uint256)b; }
|
|
inline bool operator>=(const base_uint256& a, const uint256& b) { return (base_uint256)a >= (base_uint256)b; }
|
|
inline bool operator==(const base_uint256& a, const uint256& b) { return (base_uint256)a == (base_uint256)b; }
|
|
inline bool operator!=(const base_uint256& a, const uint256& b) { return (base_uint256)a != (base_uint256)b; }
|
|
inline const uint256 operator^(const base_uint256& a, const uint256& b) { return (base_uint256)a ^ (base_uint256)b; }
|
|
inline const uint256 operator&(const base_uint256& a, const uint256& b) { return (base_uint256)a & (base_uint256)b; }
|
|
inline const uint256 operator|(const base_uint256& a, const uint256& b) { return (base_uint256)a | (base_uint256)b; }
|
|
inline const uint256 operator+(const base_uint256& a, const uint256& b) { return (base_uint256)a + (base_uint256)b; }
|
|
inline const uint256 operator-(const base_uint256& a, const uint256& b) { return (base_uint256)a - (base_uint256)b; }
|
|
|
|
inline bool operator<(const uint256& a, const base_uint256& b) { return (base_uint256)a < (base_uint256)b; }
|
|
inline bool operator<=(const uint256& a, const base_uint256& b) { return (base_uint256)a <= (base_uint256)b; }
|
|
inline bool operator>(const uint256& a, const base_uint256& b) { return (base_uint256)a > (base_uint256)b; }
|
|
inline bool operator>=(const uint256& a, const base_uint256& b) { return (base_uint256)a >= (base_uint256)b; }
|
|
inline bool operator==(const uint256& a, const base_uint256& b) { return (base_uint256)a == (base_uint256)b; }
|
|
inline bool operator!=(const uint256& a, const base_uint256& b) { return (base_uint256)a != (base_uint256)b; }
|
|
inline const uint256 operator^(const uint256& a, const base_uint256& b) { return (base_uint256)a ^ (base_uint256)b; }
|
|
inline const uint256 operator&(const uint256& a, const base_uint256& b) { return (base_uint256)a & (base_uint256)b; }
|
|
inline const uint256 operator|(const uint256& a, const base_uint256& b) { return (base_uint256)a | (base_uint256)b; }
|
|
inline const uint256 operator+(const uint256& a, const base_uint256& b) { return (base_uint256)a + (base_uint256)b; }
|
|
inline const uint256 operator-(const uint256& a, const base_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 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 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 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; }
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
inline int Testuint256AdHoc(vector<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);
|
|
}
|