/*
 * Compile with
 *
 * gcc -Wall -o gmp_test gmp_test.c -lgmp
 */
#include <stdlib.h>
#include <stdio.h>
#include <gmp.h>

struct strm {
	unsigned int i;
	mpz_t t;
};

struct strm *init()
{
	struct strm *s = (struct strm*)malloc(sizeof(struct strm));
	mpz_init(s->t);
	s->i = 0;
	return s;
}

int main(int argc, char *argv[])
{
	struct strm *s = init();

	mpz_add_ui(s->t, s->t, 42);

	gmp_printf("%s is an mpz: %Zd\n", "here", s->t);

	mpz_clear(s->t);
	free(s);

	return 0;
}