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BN_ADD_WORD(3) OpenSSL BN_ADD_WORD(3) NAME BN_add_word, BN_sub_word, BN_mul_word, BN_div_word, BN_mod_word - arithmetic functions on BIGNUMs with integers SYNOPSIS #include <openssl/bn.h> int BN_add_word(BIGNUM *a, BN_ULONG w); int BN_sub_word(BIGNUM *a, BN_ULONG w); int BN_mul_word(BIGNUM *a, BN_ULONG w); BN_ULONG BN_div_word(BIGNUM *a, BN_ULONG w); BN_ULONG BN_mod_word(const BIGNUM *a, BN_ULONG w); DESCRIPTION These functions perform arithmetic operations on BIGNUMs with unsigned integers. They are much more efficient than the normal BIGNUM arithmetic operations. BN_add_word() adds w to a ("a+=w"). BN_sub_word() subtracts w from a ("a-=w"). BN_mul_word() multiplies a and w ("a*=w"). BN_div_word() divides a by w ("a/=w") and returns the remainder. BN_mod_word() returns the remainder of a divided by w ("a%w"). For BN_div_word() and BN_mod_word(), w must not be 0. RETURN VALUES BN_add_word(), BN_sub_word() and BN_mul_word() return 1 for success, 0 on error. The error codes can be obtained by ERR_get_error(3). BN_mod_word() and BN_div_word() return a%w on success and (BN_ULONG)-1 if an error occurred. SEE ALSO ERR_get_error(3), BN_add(3) COPYRIGHT Copyright 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>. 1.1.1k 2021-03-25 BN_ADD_WORD(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | COPYRIGHT
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