mpz_t function for complex numbers

[Bernhard Helmes]

   A beautiful easter day,

   Are there some mpz_t functions availible for complex numbers ?

   I would like to write and add some function to Gmp as
   void mpz_complx_mul         (mpz_t rop1, mpz_t rop2, mpz_t a, mpz_t b,
   mpz_t c, mpz_t d)
   void mpz_complx_mulm      (mpz_t rop1, mpz_t rop2, mpz_t a, mpz_t b,
   mpz_t c, mpz_t d, mpz_t mod)
   void mpz_complx_sqr          (mpz_t rop1, mpz_t rop2, mpz_t a, mpz_t b)
   void mpz_complx_sqrm       (mpz_t rop1, mpz_t rop2, mpz_t a, mpz_t b,
   mpz_t mod)
   void mpz_complx_powm      (mpz_t rop1, mpz_t rop2, mpz_t base,1 mpz_t
   base2, mpz_t exp, mpz_t mod)
   void mpz_complx_powm_ui (mpz_t rop1, mpz_t rop2, mpz_t base,1 mpz_t
   base2, unsigned long int exp, mpz_t mod)

   Which name convention would be usefull and which is the standart
   convention for the parameters ?

   Nice greetings from the primes
   Bernhard Helmes