mpq_t * MPQ
mpz_t * MPZ
mpf_t * MPF
mpfr_t * MPFR
INPUT
MPQ
$var = INT2PTR($type, SvIVX(SvRV($arg)))
MPZ
$var = INT2PTR($type, SvIVX(SvRV($arg)))
MPF
$var = INT2PTR($type, SvIVX(SvRV($arg)))
MPFR
$var = INT2PTR($type, SvIVX(SvRV($arg)))