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template<typename T>
class EllipticCurve
{
//...
std::pair<T, T> SoustractPoints(const std::pair<T, T> firstPoint, const std::pair<T, T> secondPoint)
{
std::pair<T, T> reciprocalPoint(firstPoint.first, 0);
std::multimap<T, T>::iterator iter = m_points.begin();//ici
if( iter != m_points.end())
{
if((--iter).second == m_p - secondPoint.second)
reciprocalPoint.second = iter.second;
else
{
reciprocalPoint.second = m_p - secondPoint.second;
}
}
return AddPoints(firstPoint, reciprocalPoint);
}
}; |
