From 360dd957f279b08c90c90e43a7222eaad685d26c Mon Sep 17 00:00:00 2001
From: denzor200 <denismikhaylov38@gmail.com>
Date: Sun, 9 Jan 2022 16:34:07 +0400
Subject: [PATCH] [transform_view_ext] Unary transform_view is an Associative
 Sequence now

---
 doc/view.qbk                                      |  1 +
 .../transform_view/detail/deref_data_impl.hpp     |  5 -----
 .../transform_view/transform_view_iterator.hpp    | 15 ++++++---------
 3 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/doc/view.qbk b/doc/view.qbk
index e65ac630..d99b325f 100644
--- a/doc/view.qbk
+++ b/doc/view.qbk
@@ -363,6 +363,7 @@ given a binary function object or function pointer.
 * __forward_sequence__, __bidirectional_sequence__ or
 __random_access_sequence__ depending on the traversal characteristics (see
 __traversal_concept__) of its underlying sequence or sequences.
+* __associative_sequence__ if underlying sequence implements the __associative_sequence__ model(available only with unary version of `transform_view`).
 
 [variablelist Notation
     [[`TV`]             [A `transform_view` type]]
diff --git a/include/boost/fusion/view/transform_view/detail/deref_data_impl.hpp b/include/boost/fusion/view/transform_view/detail/deref_data_impl.hpp
index 83ea236a..3eb325a4 100644
--- a/include/boost/fusion/view/transform_view/detail/deref_data_impl.hpp
+++ b/include/boost/fusion/view/transform_view/detail/deref_data_impl.hpp
@@ -10,11 +10,6 @@
 #include <boost/fusion/support/config.hpp>
 #include <boost/fusion/iterator/deref.hpp>
 #include <boost/mpl/if.hpp>
-#include <boost/type_traits/add_const.hpp>
-#include <boost/type_traits/add_reference.hpp>
-#include <boost/type_traits/is_const.hpp>
-#include <boost/type_traits/is_reference.hpp>
-#include <boost/utility/result_of.hpp>
 
 namespace boost { namespace fusion
 {
diff --git a/include/boost/fusion/view/transform_view/transform_view_iterator.hpp b/include/boost/fusion/view/transform_view/transform_view_iterator.hpp
index ba5b7c9b..071cba8e 100644
--- a/include/boost/fusion/view/transform_view/transform_view_iterator.hpp
+++ b/include/boost/fusion/view/transform_view/transform_view_iterator.hpp
@@ -23,11 +23,6 @@
 #include <boost/fusion/view/transform_view/detail/value_of_data_impl.hpp>
 #include <boost/fusion/view/transform_view/detail/deref_data_impl.hpp>
 
-#ifdef _MSC_VER
-#  pragma warning(push)
-#  pragma warning(disable: 4512) // assignment operator could not be generated.
-#endif
-
 namespace boost { namespace fusion
 {
     // Unary Version
@@ -49,6 +44,9 @@ namespace boost { namespace fusion
 
         first_type first;
         transform_type f;
+
+        // silence MSVC warning C4512: assignment operator could not be generated
+        BOOST_DELETED_FUNCTION(transform_view_iterator& operator= (transform_view_iterator const&))
     };
 
     // Binary Version
@@ -73,13 +71,12 @@ namespace boost { namespace fusion
         first1_type first1;
         first2_type first2;
         transform_type f;
+
+        // silence MSVC warning C4512: assignment operator could not be generated
+        BOOST_DELETED_FUNCTION(transform_view_iterator2& operator= (transform_view_iterator2 const&))
     };
 }}
 
-#ifdef _MSC_VER
-#  pragma warning(pop)
-#endif
-
 #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
 namespace std
 {