/usr/man/cat.3/BN_copy.3

BN_copy(3)                   OpenSSL                   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.

1.0.2t               Last change: 2019-09-10                    1

See also BN_dup(3)