Add NVTX C++ wrappers

cpp/.gitignore

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+build/
+docs/html/
+docs/index.html
+

cpp/CMakeLists.txt

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+#=============================================================================
+# Copyright (c) 2020, NVIDIA CORPORATION.
+#
+# 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 3.12 FATAL_ERROR)
+
+project(NVTX VERSION 0.1.0 LANGUAGES C CXX CUDA)
+
+find_package(CUDA REQUIRED)
+
+###################################################################################################
+# - build type ------------------------------------------------------------------------------------
+
+# Set a default build type if none was specified
+set(DEFAULT_BUILD_TYPE "Release")
+
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  message(STATUS "Setting build type to '${DEFAULT_BUILD_TYPE}' since none specified.")
+  set(CMAKE_BUILD_TYPE "${DEFAULT_BUILD_TYPE}" CACHE
+      STRING "Choose the type of build." FORCE)
+  # Set the possible values of build type for cmake-gui
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
+endif()
+
+###################################################################################################
+# - compiler options ------------------------------------------------------------------------------
+
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_C_COMPILER $ENV{CC})
+set(CMAKE_CXX_COMPILER $ENV{CXX})
+
+if(CMAKE_COMPILER_IS_GNUCXX)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
+
+    option(CMAKE_CXX11_ABI "Enable the GLIBCXX11 ABI" ON)
+    if(CMAKE_CXX11_ABI)
+        message(STATUS "RMM: Enabling the GLIBCXX11 ABI")
+    else()
+        message(STATUS "RMM: Disabling the GLIBCXX11 ABI")
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_GLIBCXX_USE_CXX11_ABI=0")
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_GLIBCXX_USE_CXX11_ABI=0")
+        set(CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS} -Xcompiler -D_GLIBCXX_USE_CXX11_ABI=0")
+    endif(CMAKE_CXX11_ABI)
+endif(CMAKE_COMPILER_IS_GNUCXX)
+
+###################################################################################################
+# - cmake modules ---------------------------------------------------------------------------------
+
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules/" ${CMAKE_MODULE_PATH})
+
+include(FeatureSummary)
+include(CheckIncludeFiles)
+include(CheckLibraryExists)
+
+###################################################################################################
+# - add gtest -------------------------------------------------------------------------------------
+
+include(CTest)
+include(ConfigureGoogleTest)
+
+if(GTEST_FOUND)
+    message(STATUS "Google C++ Testing Framework (Google Test) found in ${GTEST_ROOT}")
+    include_directories(${GTEST_INCLUDE_DIR})
+    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/tests)
+else()
+    message(AUTHOR_WARNING "Google C++ Testing Framework (Google Test) not found: automated tests are disabled.")
+endif(GTEST_FOUND)
+
+
+###################################################################################################
+# - build doxygen ---------------------------------------------------------------------------------
+add_custom_command(OUTPUT BUILD_DOXYGEN
+                   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+                   COMMAND doxygen doxygen/Doxyfile
+                   VERBATIM)
+
+add_custom_target(docs DEPENDS BUILD_DOXYGEN)

cpp/LICENSE

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cpp/README.md

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+# NVTX++
+
+Provides C++ convenience wrappers for NVIDIA Tool Extension (NVTX) C APIs. 
+
+See https://jrhemstad.github.io/nvtx_wrappers/html/index.html for Doxygen documentation.
+
+  # Quick Start
+
+  To add NVTX ranges to your code, use the `nvtx3::thread_range` RAII object. A
+  range begins when the object is created, and ends when the object is
+  destroyed.
+
+  ```c++
+  #include "nvtx3.hpp"
+  void some_function(){
+     // Begins a NVTX range with the messsage "some_function"
+     // The range ends when some_function() returns and `r` is destroyed
+     nvtx3::thread_range r{"some_function"};
+
+     for(int i = 0; i < 6; ++i){
+        nvtx3::thread_range loop{"loop range"};
+        std::this_thread::sleep_for(std::chrono::seconds{1});
+     }
+  } // Range ends when `r` is destroyed
+  ```
+
+  The example code above generates the following timeline view in Nsight Systems:
+
+  ![alt text](https://raw.githubusercontent.com/jrhemstad/nvtx_wrappers/master/docs/example_range.png "Example NVTX Ranges")
+
+  Alternatively, use the macro `NVTX3_FUNC_RANGE()` to add
+  ranges to your code that automatically use the name of the enclosing function
+  as the range's message.
+
+ ```c++
+ #include "nvtx3.hpp"
+  void some_function(){
+     // Creates a range with a message "some_function" that ends when the enclosing
+     // function returns
+     NVTX3_FUNC_RANGE();
+     ...
+  }
+  ```
+