1BN_CMP(3)                           OpenSSL                          BN_CMP(3)
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NAME

6       BN_cmp, BN_ucmp, BN_is_zero, BN_is_one, BN_is_word, BN_abs_is_word,
7       BN_is_odd - BIGNUM comparison and test functions
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SYNOPSIS

10        #include <openssl/bn.h>
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12        int BN_cmp(const BIGNUM *a, const BIGNUM *b);
13        int BN_ucmp(const BIGNUM *a, const BIGNUM *b);
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15        int BN_is_zero(const BIGNUM *a);
16        int BN_is_one(const BIGNUM *a);
17        int BN_is_word(const BIGNUM *a, const BN_ULONG w);
18        int BN_abs_is_word(const BIGNUM *a, const BN_ULONG w);
19        int BN_is_odd(const BIGNUM *a);
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DESCRIPTION

22       BN_cmp() compares the numbers a and b. BN_ucmp() compares their
23       absolute values.
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25       BN_is_zero(), BN_is_one(), BN_is_word() and BN_abs_is_word() test if a
26       equals 0, 1, w, or |w| respectively.  BN_is_odd() tests if a is odd.
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RETURN VALUES

29       BN_cmp() returns -1 if a < b, 0 if a == b and 1 if a > b. BN_ucmp() is
30       the same using the absolute values of a and b.
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32       BN_is_zero(), BN_is_one() BN_is_word(), BN_abs_is_word() and
33       BN_is_odd() return 1 if the condition is true, 0 otherwise.
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HISTORY

36       Prior to OpenSSL 1.1.0, BN_is_zero(), BN_is_one(), BN_is_word(),
37       BN_abs_is_word() and BN_is_odd() were macros.
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40       Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.
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42       Licensed under the OpenSSL license (the "License").  You may not use
43       this file except in compliance with the License.  You can obtain a copy
44       in the file LICENSE in the source distribution or at
45       <https://www.openssl.org/source/license.html>.
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491.1.1q                            2023-02-06                         BN_CMP(3)
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