openssl/doc/man3/BN_add_word.pod
Rich Salz 9e183d2271 Fix many doc L<> errors
Add 2017 copyright year
Add missing typedef to NAME
Remove ec(7) and bn(7) doc links
Remove .pod link errors, bogus links, make a few typo corrections
Fix some typo's in links and some missing items.
Don't link to C runtime functions (See OPENSSL_malloc for example/precedent)
Document ASN1_tag2str(), add a few typedef's that were missing from NAME
Update doc-nits target; addresses
    https://github.com/openssl/openssl/pull/1900#issuecomment-259943891,
Merge check-doc-links into find-doc-nits; if run regularly, would have found
    https://github.com/openssl/openssl/pull/2825

    Reviewed-by: Richard Levitte <levitte@openssl.org>
    (Merged from https://github.com/openssl/openssl/pull/2862)
2017-03-11 08:56:44 -05:00

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Text

=pod
=head1 NAME
BN_add_word, BN_sub_word, BN_mul_word, BN_div_word, BN_mod_word - arithmetic
functions on BIGNUMs with integers
=head1 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);
=head1 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 B<w> to B<a> (C<a+=w>).
BN_sub_word() subtracts B<w> from B<a> (C<a-=w>).
BN_mul_word() multiplies B<a> and B<w> (C<a*=w>).
BN_div_word() divides B<a> by B<w> (C<a/=w>) and returns the remainder.
BN_mod_word() returns the remainder of B<a> divided by B<w> (C<a%w>).
For BN_div_word() and BN_mod_word(), B<w> must not be 0.
=head1 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 L<ERR_get_error(3)>.
BN_mod_word() and BN_div_word() return B<a>%B<w> on success and
B<(BN_ULONG)-1> if an error occurred.
=head1 SEE ALSO
L<ERR_get_error(3)>, L<BN_add(3)>
=head1 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
L<https://www.openssl.org/source/license.html>.
=cut