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hp_uint_cmp.cpp
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#include "hp_uint.h"
namespace hpa
{
bool hp_uint::operator<(const hp_uint& rhs) const
{
if (digits.size() < rhs.digits.size())
return true;
else if (digits.size() > rhs.digits.size())
return false;
int i = digits.size() - 1;
while (i >= 0 && digits[i] == rhs.digits[i])
i--;
if (i == -1)
return false;
else
return digits[i] < rhs.digits[i];
}
bool hp_uint::operator>(const hp_uint& rhs) const
{
return !(*this <= rhs);
}
bool hp_uint::operator<=(const hp_uint& rhs) const
{
if (digits.size() < rhs.digits.size())
return true;
else if (digits.size() > rhs.digits.size())
return false;
int i = digits.size() - 1;
while (i >= 0 && digits[i] == rhs.digits[i])
i--;
if (i == -1)
return true;
else
return digits[i] < rhs.digits[i];
}
bool hp_uint::operator>=(const hp_uint& rhs) const
{
return !(*this < rhs);
}
bool hp_uint::operator!=(const hp_uint& rhs) const
{
return !(*this == rhs);
}
bool hp_uint::operator==(const hp_uint& rhs) const
{
if (digits.size() != rhs.digits.size())
return false;
int i = 0;
while (i < digits.size())
if (digits[i] != rhs.digits[i++])
return false;
return true;
}
}