From 3d4ca443b4778e3230ff23f17625f58f815a9142 Mon Sep 17 00:00:00 2001
From: Billy Brumley <bbrumley@gmail.com>
Date: Wed, 4 Aug 2021 10:45:52 +0300
Subject: [PATCH] [doc/man3] documentation: BN_cmp manpage updates

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/16214)
---
 doc/man3/BN_cmp.pod | 41 +++++++++++++++++++++++------------------
 1 file changed, 23 insertions(+), 18 deletions(-)

diff --git a/doc/man3/BN_cmp.pod b/doc/man3/BN_cmp.pod
index da4e1fe8b8..f302818f21 100644
--- a/doc/man3/BN_cmp.pod
+++ b/doc/man3/BN_cmp.pod
@@ -2,42 +2,47 @@
 
 =head1 NAME
 
-BN_cmp, BN_ucmp, BN_is_zero, BN_is_one, BN_is_word, BN_is_odd - BIGNUM comparison and test functions
+BN_cmp, BN_ucmp, BN_is_zero, BN_is_one, BN_is_word, BN_abs_is_word, BN_is_odd - BIGNUM comparison and test functions
 
 =head1 SYNOPSIS
 
  #include <openssl/bn.h>
 
- int BN_cmp(BIGNUM *a, BIGNUM *b);
- int BN_ucmp(BIGNUM *a, BIGNUM *b);
+ int BN_cmp(const BIGNUM *a, const BIGNUM *b);
+ int BN_ucmp(const BIGNUM *a, const 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);
+ int BN_is_zero(const BIGNUM *a);
+ int BN_is_one(const BIGNUM *a);
+ int BN_is_word(const BIGNUM *a, const BN_ULONG w);
+ int BN_abs_is_word(const BIGNUM *a, const BN_ULONG w);
+ int BN_is_odd(const BIGNUM *a);
 
 =head1 DESCRIPTION
 
-BN_cmp() compares the numbers B<a> and B<b>. BN_ucmp() compares their
+BN_cmp() compares the numbers I<a> and I<b>. BN_ucmp() compares their
 absolute values.
 
-BN_is_zero(), BN_is_one() and BN_is_word() test if B<a> equals 0, 1,
-or B<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.
+BN_is_zero(), BN_is_one(), BN_is_word() and BN_abs_is_word() test if
+I<a> equals 0, 1, I<w>, or E<verbar>I<w>E<verbar> respectively.
+BN_is_odd() tests if I<a> is odd.
 
 =head1 RETURN VALUES
 
-BN_cmp() returns -1 if B<a> E<lt> B<b>, 0 if B<a> == B<b> and 1 if
-B<a> E<gt> B<b>. BN_ucmp() is the same using the absolute values
-of B<a> and B<b>.
+BN_cmp() returns -1 if I<a> E<lt> I<b>, 0 if I<a> == I<b> and 1 if
+I<a> E<gt> I<b>. BN_ucmp() is the same using the absolute values
+of I<a> and I<b>.
+
+BN_is_zero(), BN_is_one() BN_is_word(), BN_abs_is_word() and
+BN_is_odd() return 1 if the condition is true, 0 otherwise.
+
+=head1 HISTORY
 
-BN_is_zero(), BN_is_one() BN_is_word() and BN_is_odd() return 1 if
-the condition is true, 0 otherwise.
+Prior to OpenSSL 1.1.0, BN_is_zero(), BN_is_one(), BN_is_word(),
+BN_abs_is_word() and BN_is_odd() were macros.
 
 =head1 COPYRIGHT
 
-Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.
 
 Licensed under the Apache License 2.0 (the "License").  You may not use
 this file except in compliance with the License.  You can obtain a copy
-- 
2.34.1