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#include <stdio.h> /* for printf */ #include <gmp.h> int main(int argc, char *argv[]) { mpz_t a, b; /* working numbers */ if (argc<3) { /* not enough words */ printf("Please supply two numbers to add.\n"); return 1; } mpz_init_set_str (a, argv[1], 10); /* Assume decimal integers */ mpz_init_set_str (b, argv[2], 10); /* Assume decimal integers */ mpz_add (a, a, b); /* a=a+b */ printf("%s + %s => %s\n", argv[1], argv[2], mpz_get_str (NULL, 10, a)); return 0; }