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RedHat 9 (Linux i386) - man page for bn_copy (redhat section 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. 0.9.7a 2002-09-25 BN_copy(3)