bigint
#include <stdexcept>
#include"Bigint.hpp"
#include<algorithm>
// CONSTRUCTOR OVERLOAD
Bigint::Bigint(std::list<unsigned char>B)
:m_digits(B){}
Bigint::~Bigint(){}
//##################################### is_zero #########>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Amir Ammar
bool Bigint::is_zero()const
{
if(m_digits.front()=='0'){
return true;
}
return false;
}
//##################################### is_negative #########################################################
bool Bigint::is_negative() const{
if(m_is_negative == true){
return true ;
}else
return false;
}
//<<<<<<<<<<<<<<<<<<<<<<<<<<<insertion operator overloading<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Amir Ammar
std::ostream& operator<<(std::ostream& out, const Bigint& i){
for(auto b = i.m_digits.begin(); b != i.m_digits.end(); ++b){
out<<(*b);
}
return (out);
}
//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>extraction operator overloading>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Efi Fogel
std::istream& operator>>(std::istream& in, Bigint& i) {
char c;
in.get(c);
if (c == '-') i.m_is_negative = true;
else {
if (! std::isdigit(c)) throw std::runtime_error("Invalid input");
i.m_digits.emplace_front(c);
}
while (in.get(c) && (c != 0xa)) {
if (! std::isdigit(c)) throw std::runtime_error("Invalid input");
i.m_digits.emplace_front(c);
}
i.m_digits.reverse(); // additional method to return the reversed value (the real input)
while(i.m_digits.front()=='0'&&i.m_digits.size()!= 1){ // while loop to earse additional zeroes
i.m_digits.pop_front();
if(i.m_digits.size()== 1)
break;
}
return in;
}