Hashida <jhashida@fls.fujitsu.com> said： > "MP_INT" is used in"FreeS/WAN" which is ipsec stack on Linux. > Because I want to understand "MP_INT" structure, tried with my first > program. I see. "mpz_t" means "pointer to _mpz_struct" but "MP_INT" is defined as "_mpz_ struct" itself. "mpz_t" is equal to "MP_INT *". Best regards,