BN_zero3ssl
Bignum assignment operations
Usage
#include <openssl/bn.h>void BN_zero(BIGNUM *a);int BN_one(BIGNUM *a);const BIGNUM *BN_value_one(void);int BN_set_word(BIGNUM *a, BN_ULONG w);unsigned BN_ULONG BN_get_word(BIGNUM *a);
Overview
BN_ULONG is a macro that will be an unsigned integral type optimized for the most efficient implementation on the local platform.
BN_zero(), BN_one() and BN_set_word() set a to the values 0, 1 and w respectively. BN_zero() and BN_one() are macros.
BN_value_one() returns a BIGNUM constant of value 1. This constant is useful for use in comparisons and assignment.
BN_get_word() returns a, if it can be represented as a BN_ULONG.
Return values
BN_get_word() returns the value a, or all-bits-set if a cannot be represented as a single integer.
BN_one() and BN_set_word() return 1 on success, 0 otherwise. BN_value_one() returns the constant. BN_zero() never fails and returns no value.
Releases
13 releases since Debian 3.0 (Woody); the text changed 12 times.