BN_cmp(3) - NetBSD Manual Pages

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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


LIBRARY

       libcrypto, -lcrypto


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

       openssl_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.












2000-07-22                    0.9.6g                            1