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BN_cmp(3)			    OpenSSL			     BN_cmp(3)

NAME
       BN_cmp, BN_ucmp, BN_is_zero, BN_is_one, BN_is_word, BN_is_odd - BIGNUM
       comparison and test functions

SYNOPSIS
	#include <openssl/bn.h>

	int BN_cmp(BIGNUM *a, BIGNUM *b);
	int BN_ucmp(BIGNUM *a, BIGNUM *b);

	int BN_is_zero(BIGNUM *a);
	int BN_is_one(BIGNUM *a);
	int BN_is_word(BIGNUM *a, BN_ULONG w);
	int BN_is_odd(BIGNUM *a);

DESCRIPTION
       BN_cmp() compares the numbers a and b. BN_ucmp() compares their
       absolute values.

       BN_is_zero(), BN_is_one() and BN_is_word() test if a equals 0, 1, or w
       respectively. BN_is_odd() tests if a is odd.

       BN_is_zero(), BN_is_one(), BN_is_word() and BN_is_odd() are macros.

RETURN VALUES
       BN_cmp() returns -1 if a < b, 0 if a == b and 1 if a > b. BN_ucmp() is
       the same using the absolute values of a and b.

       BN_is_zero(), BN_is_one() BN_is_word() and BN_is_odd() return 1 if the
       condition is true, 0 otherwise.

SEE ALSO
       bn(3)

HISTORY
       BN_cmp(), BN_ucmp(), BN_is_zero(), BN_is_one() and BN_is_word() are
       available in all versions of SSLeay and OpenSSL.	 BN_is_odd() was added
       in SSLeay 0.8.

0.9.8q				  2000-01-26			     BN_cmp(3)
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