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RedHat 9 (Linux i386) - man page for bn_num_bits_word (redhat section 3)

BN_num_bytes(3) 						      OpenSSL							   BN_num_bytes(3)

NAME
BN_num_bits, BN_num_bytes, BN_num_bits_word - get BIGNUM size
SYNOPSIS
#include <openssl/bn.h> int BN_num_bytes(const BIGNUM *a); int BN_num_bits(const BIGNUM *a); int BN_num_bits_word(BN_ULONG w);
DESCRIPTION
These functions return the size of a BIGNUM in bytes or bits, and the size of an unsigned integer in bits. BN_num_bytes() is a macro.
RETURN VALUES
The size.
SEE ALSO
bn(3)
HISTORY
BN_num_bytes(), BN_num_bits() and BN_num_bits_word() are available in all versions of SSLeay and OpenSSL. 0.9.7a 2000-02-24 BN_num_bytes(3)