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BN_cmp
Section: OpenSSL (3) Updated: 2017-05-25 Index
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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.
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.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- SEE ALSO
-
- HISTORY
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