Pair()

Pair::Pair ( int a, int b, const IntermediateBasis & F )

inline

Definition at line 60 of file franzi-gb.cpp.

  {
    if (a < b)
      {
        i = a;
        j = b;
      }
    else if (b < a)
      {
        i = b;
        j = a;
      }
    else
      {
        throw "Invalid numbers in Pair";
      }
    IntermediateBasis::const_iterator end = F.end();
    if (F.find(j) == end || (i >= 0 && F.find(i) == end))
      {           // fi or fj are not in F anymore
        lcm = 0;  // constant 1
        good = false;
      }
    else
      {
        if (i < 0)
          {  // working with field polynomial
            lcm = F.find(j)->second.LT();
            good = true;  // BRP::isDivisibleBy(lcm, BRP( 1 << n-(-i) ) );
          }
        else
          {
            unsigned long a = F.find(i)->second.LT();
            unsigned long b = F.find(j)->second.LT();
            lcm = a | b;
            good = !BRP::isRelativelyPrime(a, b);
          }
      }
  }

References end(), good, i, BRP::isRelativelyPrime(), j, and lcm.

Referenced by operator<.