BN_copy(3)

     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.