Deduplicate shared code between uint160 and uint256
This commit is contained in:
Pieter Wuille
parent
e443ed2462
commit
eb2cbd754d
1 changed files with 65 additions and 241 deletions
306
src/uint256.h
306
src/uint256.h
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@ -1,5 +1,5 @@
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// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2013 The Bitcoin developers
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// Copyright (c) 2009-2014 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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@ -19,17 +19,56 @@ inline signed char HexDigit(char c)
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return p_util_hexdigit[(unsigned char)c];
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}
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/** Base class without constructors for uint256 and uint160.
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* This makes the compiler let you use it in a union.
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*/
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/** Template base class for unsigned big integers. */
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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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private:
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enum { WIDTH=BITS/32 };
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uint32_t pn[WIDTH];
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public:
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base_uint()
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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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base_uint(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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}
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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(uint64_t 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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explicit base_uint(const std::string& str)
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{
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SetHex(str);
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}
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explicit base_uint(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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bool operator!() const
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{
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for (int i = 0; i < WIDTH; i++)
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@ -292,7 +331,13 @@ public:
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return (!(a == b));
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}
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friend inline const base_uint operator+(const base_uint& a, const base_uint& b) { return base_uint(a) += b; }
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friend inline const base_uint operator-(const base_uint& a, const base_uint& b) { return base_uint(a) -= b; }
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friend inline const base_uint operator|(const base_uint& a, const base_uint& b) { return base_uint(a) |= b; }
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friend inline const base_uint operator&(const base_uint& a, const base_uint& b) { return base_uint(a) &= b; }
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friend inline const base_uint operator^(const base_uint& a, const base_uint& b) { return base_uint(a) ^= b; }
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friend inline const base_uint operator>>(const base_uint& a, int shift) { return base_uint(a) >>= shift; }
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friend inline const base_uint operator<<(const base_uint& a, int shift) { return base_uint(a) <<= shift; }
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std::string GetHex() const
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{
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@ -373,263 +418,42 @@ public:
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return pn[0] | (uint64_t)pn[1] << 32;
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}
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// unsigned int GetSerializeSize(int nType=0, int nVersion=PROTOCOL_VERSION) const
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unsigned int GetSerializeSize(int nType, int nVersion) 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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void Serialize(Stream& s, int nType, int nVersion) 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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void Unserialize(Stream& s, int nType, int nVersion)
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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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};
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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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/** 160-bit unsigned integer */
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class uint160 : public base_uint160
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{
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/** 160-bit unsigned big integer. */
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class uint160 : public base_uint<160> {
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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_t 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_t 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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uint160() {}
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uint160(const base_uint<160>& b) : base_uint<160>(b) {}
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uint160(uint64_t b) : base_uint<160>(b) {}
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explicit uint160(const std::string& str) : base_uint<160>(str) {}
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explicit uint160(const std::vector<unsigned char>& vch) : base_uint<160>(vch) {}
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};
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inline bool operator==(const uint160& a, uint64_t b) { return (base_uint160)a == b; }
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inline bool operator!=(const uint160& a, uint64_t 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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/** 256-bit unsigned integer */
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class uint256 : public base_uint256
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{
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/** 256-bit unsigned big integer. */
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class uint256 : public base_uint<256> {
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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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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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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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uint256(uint64_t 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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uint256& operator=(uint64_t 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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uint256() {}
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uint256(const base_uint<256>& b) : base_uint<256>(b) {}
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uint256(uint64_t b) : base_uint<256>(b) {}
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explicit uint256(const std::string& str) : base_uint<256>(str) {}
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explicit uint256(const std::vector<unsigned char>& vch) : base_uint<256>(vch) {}
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};
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inline bool operator==(const uint256& a, uint64_t b) { return (base_uint256)a == b; }
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inline bool operator!=(const uint256& a, uint64_t 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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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; }
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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; }
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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; }
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inline const uint256 operator^(const uint256& a, const uint256& b) { return (base_uint256)a ^ (base_uint256)b; }
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inline const uint256 operator&(const uint256& a, const uint256& b) { return (base_uint256)a & (base_uint256)b; }
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inline const uint256 operator|(const uint256& a, const uint256& b) { return (base_uint256)a | (base_uint256)b; }
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inline const uint256 operator+(const uint256& a, const uint256& b) { return (base_uint256)a + (base_uint256)b; }
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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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#endif
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Reference in a new issue