ntl_ZZ_from_mpz()

NTL::ZZ ntl_ZZ_from_mpz ( mpz_srcptr a )

extern

Definition at line 35 of file ntl-internal.cpp.

{
  int sgn = mpz_sgn(a);
  if (sgn == 0) return NTL::ZZ::zero();
  long len = mpz_sizeinbase(a, 8);
  unsigned char *byte_array = new unsigned char[len];
  size_t written_len;
  mpz_export(byte_array, &written_len, -1, sizeof(byte_array[0]), 0, 0, a);
  NTL::ZZ result = NTL::ZZFromBytes(byte_array, written_len);
  delete[] byte_array;
  return (sgn > 0 ? result : -result);
}

References result().

Referenced by mat_ZZ_set_entry().