Make etl::array_view immutable by default

.vs/.gitignore

@@ -1 +0,0 @@
-/slnx.sqlite

.vs/ProjectSettings.json

@@ -1,3 +0,0 @@
-{
-  "CurrentProjectSetting": "x86-Debug"
-}

.vs/VSWorkspaceState.json

@@ -1,10 +0,0 @@
-{
-  "ExpandedNodes": [
-    "",
-    "\\include",
-    "\\include\\etl",
-    "\\test"
-  ],
-  "SelectedNode": "\\test\\test_to_string.cpp",
-  "PreviewInSolutionExplorer": false
-}

include/etl/array_view.h

@@ -101,15 +101,23 @@ namespace etl
 
     typedef T        value_type;
     typedef size_t   size_type;
-    typedef T&       reference;
     typedef const T& const_reference;
-    typedef T*       pointer;
     typedef const T* const_pointer;
-    typedef T*       iterator;
     typedef const T* const_iterator;
-    typedef ETL_OR_STD::reverse_iterator<iterator>       reverse_iterator;
     typedef ETL_OR_STD::reverse_iterator<const_iterator> const_reverse_iterator;
 
+#if defined(ETL_ARRAY_VIEW_IS_MUTABLE)
+    typedef T* pointer;
+    typedef T& reference;
+    typedef T* iterator;
+    typedef ETL_OR_STD::reverse_iterator<iterator> reverse_iterator;
+#else
+    typedef const_pointer   pointer;
+    typedef const_reference reference;
+    typedef const_pointer   iterator;
+    typedef const_reverse_iterator reverse_iterator;
+#endif
+
     //*************************************************************************
     /// Default constructor.
     //*************************************************************************
@@ -369,6 +377,7 @@ namespace etl
       mend   = etl::addressof(*begin_) + size_;
     }
 
+#if defined(ETL_ARRAY_VIEW_IS_MUTABLE)
     //*************************************************************************
     /// Returns a reference to the indexed value.
     //*************************************************************************
@@ -376,6 +385,7 @@ namespace etl
     {
       return mbegin[i];
     }
+#endif
 
     //*************************************************************************
     /// Returns a const reference to the indexed value.
@@ -385,6 +395,7 @@ namespace etl
       return mbegin[i];
     }
 
+#if defined(ETL_ARRAY_VIEW_IS_MUTABLE)
     //*************************************************************************
     /// Returns a reference to the indexed value.
     //*************************************************************************
@@ -394,6 +405,7 @@ namespace etl
       ETL_ASSERT(i < size(), ETL_ERROR(array_view_bounds));
       return mbegin[i];
     }
+#endif
 
     //*************************************************************************
     /// Returns a const reference to the indexed value.

include/etl/version.h

@@ -38,7 +38,7 @@ SOFTWARE.
 ///\ingroup utilities
 
 #define ETL_VERSION_MAJOR 17
-#define ETL_VERSION_MINOR  5
+#define ETL_VERSION_MINOR  6
 #define ETL_VERSION_PATCH  0
 #define ETL_VERSION       ETL_STRINGIFY(ETL_VERSION_MAJOR) "." ETL_STRINGIFY(ETL_VERSION_MINOR) "." ETL_STRINGIFY(ETL_VERSION_PATCH)
 #define ETL_VERSION_W     ETL_STRINGIFY(ETL_VERSION_MAJOR) L"." ETL_STRINGIFY(ETL_VERSION_MINOR) L"." ETL_STRINGIFY(ETL_VERSION_PATCH)

library.json

@@ -1,6 +1,6 @@
 {
   "name": "Embedded Template Library",
-  "version": "17.5.0",
+  "version": "17.6.0",
   "authors": {
     "name": "John Wellbelove",
     "email": "john.wellbelove@etlcpp.com"

library.properties

@@ -1,5 +1,5 @@
 name=Embedded Template Library
-version=17.5.0
+version=17.6.0
 author= John Wellbelove <john.wellbelove@etlcpp.com>
 maintainer=John Wellbelove <john.wellbelove@etlcpp.com>
 license=MIT

support/Release notes.txt

@@ -1,3 +1,8 @@
+===============================================================================
+17.6.0
+etl::array_view is non-mutable by default.
+Mutable functionality is enabled by defining ETL_ARRAY_VIEW_IS_MUTABLE
+
 ===============================================================================
 17.5.0
 Modified etl::message_packet to allow default construction, copy/move construction

test/etl_profile.h

@@ -39,6 +39,7 @@ SOFTWARE.
 #define ETL_IDEQUE_REPAIR_ENABLE
 #define ETL_IN_UNIT_TEST
 #define ETL_DEBUG_COUNT
+#define ETL_ARRAY_VIEW_IS_MUTABLE
 
 #define ETL_MESSAGE_TIMER_USE_ATOMIC_LOCK
 #define ETL_CALLBACK_TIMER_USE_ATOMIC_LOCK