Function gmp_mpfr_sys::gmp::mpz_export

pub unsafe extern "C" fn mpz_export(
    rop: *mut c_void, 
    countp: *mut usize, 
    order: c_int, 
    size: usize, 
    endian: c_int, 
    nails: usize, 
    op: *const mpz_t
) -> *mut c_void

See: mpz_export