NAME

       BN_copy, BN_dup - copy BIGNUMs

SYNOPSIS

        #include <openssl/bn.h>

        BIGNUM *BN_copy(BIGNUM *to, const BIGNUM *from);

        BIGNUM *BN_dup(const BIGNUM *from);

DESCRIPTION

       BN_copy() copies from to to. BN_dup() creates a new BIGNUM containing the value from.

RETURN VALUES

       BN_copy() returns to on success, NULL on error. BN_dup() returns the new BIGNUM, and NULL
       on error. The error codes can be obtained by ERR_get_error(3).

SEE ALSO

       bn(3), ERR_get_error(3)

HISTORY

       BN_copy() and BN_dup() are available in all versions of SSLeay and OpenSSL.