Is it possible to use custom types in OpenCL kernel like gmp types (mpz_t, mpq_t, …) ?

To have something like that (this kernel doesn't build just because of #include <gmp.h>) :

#include <gmp.h>
__kernel square(
   __global mpz_t* input,
   __global mpz_t number,
   __global int* output,
   const unsigned int count)
{
   int i = get_global_id(0);
   if(i < count)
       output[i] = mpz_divisible_p(number,input[i]);
}

Or maybe does OpenCL already have types that can handle large numbers ?