From 88f7c2bf530b31e5acd6f9b93b7ddf38aeea94e5 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Sun, 13 Jun 2021 04:47:19 +0300
Subject: [PATCH] Revert "Update documentation"

This reverts commit 8962c9101a62f8c1b2d1471bdcb3e1c1d8d3a709.
---
 doc/system/reference.adoc | 51 ++++++++++++++-------------------------
 1 file changed, 18 insertions(+), 33 deletions(-)

diff --git a/doc/system/reference.adoc b/doc/system/reference.adoc
index ca164b6..5dbf889 100644
--- a/doc/system/reference.adoc
+++ b/doc/system/reference.adoc
@@ -670,16 +670,13 @@ namespace boost {
       constexpr const error_category & category() const noexcept;
 
       std::string message() const;
+      char const * message( char * buffer, std::size_t len ) const noexcept;
 
+      constexpr bool failed() const noexcept;
       constexpr explicit operator bool() const noexcept;
 
       operator std::error_condition() const;
 
-      // deprecated members; do not use
-
-      char const * message( char * buffer, std::size_t len ) const noexcept;
-      constexpr bool failed() const noexcept;
-
     private: // exposition only
 
       int val_;
@@ -774,25 +771,6 @@ std::string message() const;
 +
 Returns: :: `cat_\->message( val_ )`.
 
-```
-constexpr explicit operator bool() const noexcept;
-```
-[none]
-* {blank}
-+
-Returns: :: `value() != 0`.
-
-```
-operator std::error_condition() const;
-```
-[none]
-* {blank}
-+
-Returns: ::
-  `std::error_condition( val_, *cat_ )`.
-
-#### Deprecated members
-
 ```
 char const * message( char * buffer, std::size_t len ) const noexcept;
 ```
@@ -801,11 +779,6 @@ char const * message( char * buffer, std::size_t len ) const noexcept;
 +
 Returns: :: `cat_\->message( val_, buffer, len )`.
 
-WARNING: This member function is deprecated and will be removed. This is done
-      for compatibility with `std::error_condition` as the next release is
-      expected to improve interoperability with `<system_error>` even further.
-      _Note that this does not affect_ `error_code::message`.
-
 ```
 constexpr bool failed() const noexcept;
 ```
@@ -814,10 +787,22 @@ constexpr bool failed() const noexcept;
 +
 Returns: :: `cat_\->failed( val_ )`.
 
-WARNING: This member function is deprecated and will be removed. This is done
-      for compatibility with `std::error_condition` as the next release is
-      expected to improve interoperability with `<system_error>` even further.
-      _Note that this does not affect_ `error_code::failed`.
+```
+constexpr explicit operator bool() const noexcept;
+```
+[none]
+* {blank}
++
+Returns: :: `failed()`.
+
+```
+operator std::error_condition() const;
+```
+[none]
+* {blank}
++
+Returns: ::
+  `std::error_condition( val_, *cat_ )`.
 
 ### Nonmember functions