BN_CMP - Online Linux Manual PageSection : 3
Updated : 2021-03-26
Source : 1.1.1k
Note : OpenSSL
NAMEBN_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.
COPYRIGHTCopyright 2000−2017 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (the ‟License”). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>. 0
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