Add uncopyable.h, class uncopyable (#985)

* Add uncopyable.h, class uncopyable

* Added destructor and unit tests for etl::uncopyable

include/etl/uncopyable.h

@@ -0,0 +1,57 @@
+///\file
+
+/******************************************************************************
+The MIT License(MIT)
+
+Embedded Template Library.
+https://github.com/ETLCPP/etl
+https://www.etlcpp.com
+
+Copyright(c) 2024 BMW AG
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files(the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions :
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+******************************************************************************/
+
+#ifndef ETL_UNCOPYABLE_INCLUDED
+#define ETL_UNCOPYABLE_INCLUDED
+
+#include "platform.h"
+
+namespace etl
+{
+#if ETL_USING_CPP11
+  //***************************************************************************
+  /// An uncopyable base class.
+  /// Can be used to make a class uncopyable by deriving from it.
+  //***************************************************************************
+  class uncopyable
+  {
+  public:
+    uncopyable(uncopyable const&)            = delete;
+    uncopyable& operator=(uncopyable const&) = delete;
+
+  protected:
+    uncopyable() = default;
+    ~uncopyable() = default;
+  };
+
+#endif
+}
+
+#endif

test/CMakeLists.txt

@@ -288,6 +288,7 @@ add_executable(etl_tests
 	test_type_traits.cpp
 	test_unaligned_type.cpp
 	test_unaligned_type_constexpr.cpp
+	test_uncopyable.cpp
 	test_unordered_map.cpp
 	test_unordered_multimap.cpp
 	test_unordered_multiset.cpp

test/test_uncopyable.cpp

@@ -0,0 +1,66 @@
+/******************************************************************************
+The MIT License(MIT)
+
+Embedded Template Library.
+https://github.com/ETLCPP/etl
+https://www.etlcpp.com
+
+Copyright(c) 2024 BMW AG
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files(the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions :
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+******************************************************************************/
+
+#include "unit_test_framework.h"
+
+#include "etl/uncopyable.h"
+
+namespace
+{
+  class UncopyableClass: public etl::uncopyable
+  {
+  };
+
+  SUITE(test_uncopyable)
+  {
+    //*************************************************************************
+    TEST(test_construct)
+    {
+      UncopyableClass uc;
+
+      (void) uc;
+    }
+
+    //*************************************************************************
+    // This code is intentionally not compilable when activated
+#if 0
+    TEST(test_copy)
+    {
+      UncopyableClass uc1;
+
+      // Can't be copied by construction
+      UncopyableClass uc2{uc1}; // compile error
+      (void) uc2;
+
+      // Can't be copied by copy assignment
+      UncopyableClass uc3;
+      uc3 = uc1; // compile error
+    }
+#endif
+  };
+}