is_unit()

bool M2::ARingZZGMP::is_unit ( const ElementType & f ) const

inline

Definition at line 82 of file aring-zz-gmp.hpp.

  {
    return mpz_cmp_si(&f, 1) == 0 or mpz_cmp_si(&f, -1) == 0;
  }

Referenced by invert().