convertToFactory() [2/2]

CanonicalForm convertToFactory ( mpz_srcptr p )

static

Definition at line 312 of file factory.cpp.

{
  struct enter_factory foo;
  int size = p->_mp_size;
  int sign = size < 0 ? -1 : 1;
  if (size < 0) size = -size;
  if (!base_set)
    {
      base_set = 1;
      base = 1;
      for (int i = 0; i < mp_bits_per_limb; i++) base *= 2;
    }
  CanonicalForm m = 0;
  for (int i = size - 1; i >= 0; i--)
    {
      mp_limb_t digit = p->_mp_d[i];
      for (int j = mp_bits_per_limb; j > 0;)
        {
          int k = j - 16;
          if (k < 0) k = 0;
          int n = j - k;
          int subbase = 1 << n;
          m = subbase * m + (static_cast<int>(digit >> k) & (subbase - 1));
          j = k;
        }
    }
  m = m * sign;
  return m;
}

References base, base_set, and p.

Referenced by convertToCFList(), convertToFactory(), rawCharSeries(), rawExtendedGCDRingElement(), rawFactorBase(), rawGCDRingElement(), rawIdealReorder(), rawPseudoRemainder(), and set_GF_minimal_poly().