mixednumber.cpp

#include "mixednumber.h"

mixedNumber::mixedNumber()
{
}

mixedNumber::~mixedNumber()
{
  nukeEveryone();
}

mixedNumber::mixedNumber(int w, int n, int d)
{
  setValues(w,n,d);
}


mixedNumber::mixedNumber(const double &other)
{
  setValue(other);
}

mixedNumber::mixedNumber(const mixedNumber &other)
{
  copy(other);
}

mixedNumber& mixedNumber::operator=(const mixedNumber &other)
{
  if(this != &other)
    copy(other);
  return *this;
}


mixedNumber& mixedNumber::operator=(const fraction &other)
{
  num = other.getNum();
  denom = other.getDenom();
  return *this;
}


mixedNumber& mixedNumber::operator=(const int &other)
{
  fraction temp(other);
  *this = temp;
  return *this;
}

mixedNumber& mixedNumber::operator=(const double &other)
{
  fraction temp(other);
  *this = temp;
  return *this;
}

void mixedNumber::getValues(int &w, int &n, int &d)
{
  w = num/denom;
  n = num%denom;
  d = denom;
}

void mixedNumber::setValues(int w, int n, int d)
{
  fraction::setValue(w*d + n, d);
}

void mixedNumber::copy(const mixedNumber &other)
{
  num = other.num;
  denom = other.denom;
}

void mixedNumber::nukeEveryone()
{
  num = 0;
  denom = 1;
}

std::ostream& operator<<( std::ostream &out, const mixedNumber &m)
{
  int whole = m.num/m.denom, numerator = m.num % m.denom;
  if(numerator == 0)
    out<<whole;
  else
    if(whole == 0)
      out<<numerator<<"/"<<m.denom;
    else
      out<<whole<<" "<<abs(numerator)<<"/"<<m.denom;
  return out;
}

std::istream& operator>>( std::istream &in, mixedNumber &m)
{
  std::stringstream ss;
  fraction firstHalf, secondHalf;
  if(in >> firstHalf) {
    if(firstHalf.getDenom() == 1) {
      if(in.get() != ' ') {
        in.unget();
      }
      if(streamUtilities::hasNextFraction(in)) {
        in >> secondHalf;

        if(firstHalf.getNum() > 0) {
          m.setValue(secondHalf.getNum(), secondHalf.getDenom());
        } else {
          m.setValue(secondHalf.getNum() * -1, secondHalf.getDenom());
        }
        m.num += firstHalf.getNum() * secondHalf.getDenom();
      } else {
        m.setValue(firstHalf.getNum());
      }
    } else {
      m.setValue(firstHalf.getNum(), firstHalf.getDenom());
    }
    in.clear();
  }
  return in;
}