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Deduplicate uint* comparison operator logic

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This commit is contained in:
Pieter Wuille 2014-04-21 08:28:43 +02:00
parent df9eb5e14f
commit 397668ea63
1 changed files with 22 additions and 71 deletions
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93
src/uint256.h
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@ -308,85 +308,28 @@ public:
return ret; return ret;
} }
int CompareTo(const base_uint& b) const {
for (int i = base_uint::WIDTH-1; i >= 0; i--) {
if (pn[i] < b.pn[i])
return -1;
if (pn[i] > b.pn[i])
return 1;
}
return 0;
}
friend inline bool operator<(const base_uint& a, const base_uint& b) bool EqualTo(uint64_t b) const {
{ for (int i = base_uint::WIDTH-1; i >= 2; i--) {
for (int i = base_uint::WIDTH-1; i >= 0; i--) if (pn[i])
{
if (a.pn[i] < b.pn[i])
return true;
else if (a.pn[i] > b.pn[i])
return false; return false;
} }
return false; if (pn[1] != (b >> 32))
}
friend inline bool operator<=(const base_uint& a, const base_uint& b)
{
for (int i = base_uint::WIDTH-1; i >= 0; i--)
{
if (a.pn[i] < b.pn[i])
return true;
else if (a.pn[i] > b.pn[i])
return false;
}
return true;
}
friend inline bool operator>(const base_uint& a, const base_uint& b)
{
for (int i = base_uint::WIDTH-1; i >= 0; i--)
{
if (a.pn[i] > b.pn[i])
return true;
else if (a.pn[i] < b.pn[i])
return false;
}
return false;
}
friend inline bool operator>=(const base_uint& a, const base_uint& b)
{
for (int i = base_uint::WIDTH-1; i >= 0; i--)
{
if (a.pn[i] > b.pn[i])
return true;
else if (a.pn[i] < b.pn[i])
return false;
}
return true;
}
friend inline bool operator==(const base_uint& a, const base_uint& b)
{
for (int i = 0; i < base_uint::WIDTH; i++)
if (a.pn[i] != b.pn[i])
return false;
return true;
}
friend inline bool operator==(const base_uint& a, uint64_t b)
{
if (a.pn[0] != (unsigned int)b)
return false; return false;
if (a.pn[1] != (unsigned int)(b >> 32)) if (pn[0] != (b & 0xfffffffful))
return false; return false;
for (int i = 2; i < base_uint::WIDTH; i++)
if (a.pn[i] != 0)
return false;
return true; return true;
} }
friend inline bool operator!=(const base_uint& a, const base_uint& b)
{
return (!(a == b));
}
friend inline bool operator!=(const base_uint& a, uint64_t b)
{
return (!(a == b));
}
friend inline const base_uint operator+(const base_uint& a, const base_uint& b) { return base_uint(a) += b; } friend inline const base_uint operator+(const base_uint& a, const base_uint& b) { return base_uint(a) += b; }
friend inline const base_uint operator-(const base_uint& a, const base_uint& b) { return base_uint(a) -= b; } friend inline const base_uint operator-(const base_uint& a, const base_uint& b) { return base_uint(a) -= b; }
friend inline const base_uint operator*(const base_uint& a, const base_uint& b) { return base_uint(a) *= b; } friend inline const base_uint operator*(const base_uint& a, const base_uint& b) { return base_uint(a) *= b; }
@ -397,6 +340,14 @@ public:
friend inline const base_uint operator>>(const base_uint& a, int shift) { return base_uint(a) >>= shift; } friend inline const base_uint operator>>(const base_uint& a, int shift) { return base_uint(a) >>= shift; }
friend inline const base_uint operator<<(const base_uint& a, int shift) { return base_uint(a) <<= shift; } friend inline const base_uint operator<<(const base_uint& a, int shift) { return base_uint(a) <<= shift; }
friend inline const base_uint operator*(const base_uint& a, uint32_t b) { return base_uint(a) *= b; } friend inline const base_uint operator*(const base_uint& a, uint32_t b) { return base_uint(a) *= b; }
friend inline bool operator==(const base_uint& a, const base_uint& b) { return a.CompareTo(b) == 0; }
friend inline bool operator!=(const base_uint& a, const base_uint& b) { return a.CompareTo(b) != 0; }
friend inline bool operator>(const base_uint& a, const base_uint& b) { return a.CompareTo(b) > 0; }
friend inline bool operator<(const base_uint& a, const base_uint& b) { return a.CompareTo(b) < 0; }
friend inline bool operator>=(const base_uint& a, const base_uint& b) { return a.CompareTo(b) >= 0; }
friend inline bool operator<=(const base_uint& a, const base_uint& b) { return a.CompareTo(b) <= 0; }
friend inline bool operator==(const base_uint& a, uint64_t b) { return a.EqualTo(b); }
friend inline bool operator!=(const base_uint& a, uint64_t b) { return !a.EqualTo(b); }
std::string GetHex() const std::string GetHex() const
{ {