1=pod 2 3=head1 NAME 4 5BN_copy, BN_dup - copy BIGNUMs 6 7=head1 SYNOPSIS 8 9 #include <openssl/bn.h> 10 11 BIGNUM *BN_copy(BIGNUM *to, const BIGNUM *from); 12 13 BIGNUM *BN_dup(const BIGNUM *from); 14 15=head1 DESCRIPTION 16 17BN_copy() copies B<from> to B<to>. BN_dup() creates a new B<BIGNUM> 18containing the value B<from>. 19 20=head1 RETURN VALUES 21 22BN_copy() returns B<to> on success, NULL on error. BN_dup() returns 23the new B<BIGNUM>, and NULL on error. The error codes can be obtained 24by L<ERR_get_error(3)|ERR_get_error(3)>. 25 26=head1 SEE ALSO 27 28L<bn(3)|bn(3)>, L<ERR_get_error(3)|ERR_get_error(3)> 29 30=head1 HISTORY 31 32BN_copy() and BN_dup() are available in all versions of SSLeay and OpenSSL. 33 34=cut 35