internal_subtract()

int Z_mod::internal_subtract	(	int	f,
		int	g ) const

Definition at line 222 of file ZZp.cpp.

{
  if (g == _ZERO) return f;
  if (f == _ZERO) return internal_negate(g);
  int n = modulus_sub(_exp_table[f], _exp_table[g], P);
  return _log_table[n];
}

References _exp_table, _log_table, _ZERO, internal_negate(), modulus_sub(), and P.

Referenced by subtract().