Introduce raii-compliant handle wrapper classes.

RAII_Samples/InstanceVersion/CMakeLists.txt

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+# Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cmake_minimum_required(VERSION 3.2)
+
+project(RAII_InstanceVersion)
+
+set(HEADERS
+)
+
+set(SOURCES
+InstanceVersion.cpp
+)
+
+source_group(headers FILES ${HEADERS})
+source_group(sources FILES ${SOURCES})
+
+add_executable(RAII_InstanceVersion
+${HEADERS}
+${SOURCES}
+)
+
+set_target_properties(RAII_InstanceVersion PROPERTIES FOLDER "RAII_Samples")
+target_link_libraries(RAII_InstanceVersion PRIVATE utils)

RAII_Samples/InstanceVersion/InstanceVersion.cpp

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+// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// VulkanHpp Samples : InstanceVersion
+//                     Get the version of instance-level functionality supported by the implementation.
+
+#include "../utils/utils.hpp"
+
+#include <iostream>
+#include <sstream>
+
+std::string decodeAPIVersion( uint32_t apiVersion )
+{
+  return std::to_string( VK_VERSION_MAJOR( apiVersion ) ) + "." + std::to_string( VK_VERSION_MINOR( apiVersion ) ) +
+         "." + std::to_string( VK_VERSION_PATCH( apiVersion ) );
+}
+
+int main( int /*argc*/, char ** /*argv*/ )
+{
+  try
+  {
+    std::unique_ptr<vk::raii::Context> context = vk::raii::su::make_unique<vk::raii::Context>();
+
+    /* VULKAN_KEY_START */
+
+    uint32_t apiVersion = context->enumerateInstanceVersion();
+    std::cout << "APIVersion = " << decodeAPIVersion( apiVersion ) << std::endl;
+
+    /* VULKAN_KEY_END */
+  }
+  catch ( vk::SystemError & err )
+  {
+    std::cout << "vk::SystemError: " << err.what() << std::endl;
+    exit( -1 );
+  }
+  catch ( std::exception & err )
+  {
+    std::cout << "std::exception: " << err.what() << std::endl;
+    exit( -1 );
+  }
+  catch ( ... )
+  {
+    std::cout << "unknown error\n";
+    exit( -1 );
+  }
+  return 0;
+}