BN_cmp - BIGNUM comparison and test functions
#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);
BN_cmp(3openssl) OpenSSL BN_cmp(3openssl)
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.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | library/security/openssl |
+---------------+--------------------------+
|Stability | Pass-through uncommitted |
+---------------+--------------------------+
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.
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
https://www.openssl.org/source/openssl-1.0.2ze.tar.gz.
Further information about this software can be found on the open source
community website at https://www.openssl.org/.
1.0.2ze 2022-05-03 BN_cmp(3openssl)