5 BN_cmp, BN_ucmp, BN_is_zero, BN_is_one, BN_is_word, BN_abs_is_word, BN_is_odd - BIGNUM comparison and test functions
9 #include <openssl/bn.h>
11 int BN_cmp(const BIGNUM *a, const BIGNUM *b);
12 int BN_ucmp(const BIGNUM *a, const BIGNUM *b);
14 int BN_is_zero(const BIGNUM *a);
15 int BN_is_one(const BIGNUM *a);
16 int BN_is_word(const BIGNUM *a, const BN_ULONG w);
17 int BN_abs_is_word(const BIGNUM *a, const BN_ULONG w);
18 int BN_is_odd(const BIGNUM *a);
22 BN_cmp() compares the numbers I<a> and I<b>. BN_ucmp() compares their
25 BN_is_zero(), BN_is_one(), BN_is_word() and BN_abs_is_word() test if
26 I<a> equals 0, 1, I<w>, or E<verbar>I<w>E<verbar> respectively.
27 BN_is_odd() tests if I<a> is odd.
31 BN_cmp() returns -1 if I<a> E<lt> I<b>, 0 if I<a> == I<b> and 1 if
32 I<a> E<gt> I<b>. BN_ucmp() is the same using the absolute values
35 BN_is_zero(), BN_is_one() BN_is_word(), BN_abs_is_word() and
36 BN_is_odd() return 1 if the condition is true, 0 otherwise.
40 Prior to OpenSSL 1.1.0, BN_is_zero(), BN_is_one(), BN_is_word(),
41 BN_abs_is_word() and BN_is_odd() were macros.
45 Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.
47 Licensed under the Apache License 2.0 (the "License"). You may not use
48 this file except in compliance with the License. You can obtain a copy
49 in the file LICENSE in the source distribution or at
50 L<https://www.openssl.org/source/license.html>.