openssl1.0/doc/crypto/BN_copy.pod
2019-08-09 10:00:55 +02:00

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=pod
=head1 NAME
BN_copy, BN_dup - copy BIGNUMs
=head1 SYNOPSIS
#include <openssl/bn.h>
BIGNUM *BN_copy(BIGNUM *to, const BIGNUM *from);
BIGNUM *BN_dup(const BIGNUM *from);
=head1 DESCRIPTION
BN_copy() copies B<from> to B<to>. BN_dup() creates a new B<BIGNUM>
containing the value B<from>.
=head1 RETURN VALUES
BN_copy() returns B<to> on success, NULL on error. BN_dup() returns
the new B<BIGNUM>, and NULL on error. The error codes can be obtained
by L<ERR_get_error(3)|ERR_get_error(3)>.
=head1 SEE ALSO
L<bn(3)|bn(3)>, L<ERR_get_error(3)|ERR_get_error(3)>
=head1 HISTORY
BN_copy() and BN_dup() are available in all versions of SSLeay and OpenSSL.
=cut