add examples for setting C++ standard

01-basic/L-cpp-standard/ii-cxx-standard/CMakeLists.txt

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+# Set the minimum version of CMake that can be used
+# To find the cmake version run
+# $ cmake --version
+cmake_minimum_required(VERSION 3.1)
+
+# Set the project name
+project (hello_cpp11)
+
+# set the C++ standard to C++ 11
+set(CMAKE_CXX_STANDARD 11)
+
+# Add an executable
+add_executable(hello_cpp11 main.cpp)

01-basic/L-cpp-standard/ii-cxx-standard/README.adoc

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+= Set C++ Standard
+:toc:
+:toc-placement!:
+
+toc::[]
+
+# Introduction
+
+This example shows how to set the C++ standard using the `CMAKE_CXX_STANDARD` variable. This is available since CMake v3.1
+
+The files in this tutorial are below:
+
+```
+A-hello-cmake$ tree
+.
+├── CMakeLists.txt
+├── main.cpp
+```
+
+  * link:CMakeLists.txt[CMakeLists.txt] - Contains the CMake commands you wish to run
+  * link:main.cpp[main.cpp] - A simple "Hello World" cpp file targeting C++11.
+
+# Concepts
+
+## Using CXX_STANDARD property
+
+Setting the link:https://cmake.org/cmake/help/v3.1/variable/CMAKE_CXX_STANDARD.html[CMAKE_CXX_STANDARD] variable causes the `CXX_STANDARD` property on all targets. This causes CMake to set the appropriate flag at compille time.
+
+
+[NOTE]
+====
+The `CMAKE_CXX_STANDARD` variable falls back to the closest appropriate standard without a failure. For example, if you request `-std=gnu++11` you may end up with `-std=gnu++0x`.
+
+This can result in an unexpected failure at compile time.
+====
+
+# Building the Examples
+
+Below is sample output from building this example.
+
+[source,bash]
+----
+$ mkdir build
+$ cd build
+
+
+$ cmake ..
+-- The C compiler identification is GNU 5.4.0
+-- The CXX compiler identification is GNU 5.4.0
+-- Check for working C compiler: /usr/bin/cc
+-- Check for working C compiler: /usr/bin/cc -- works
+-- Detecting C compiler ABI info
+-- Detecting C compiler ABI info - done
+-- Detecting C compile features
+-- Detecting C compile features - done
+-- Check for working CXX compiler: /usr/bin/c++
+-- Check for working CXX compiler: /usr/bin/c++ -- works
+-- Detecting CXX compiler ABI info
+-- Detecting CXX compiler ABI info - done
+-- Detecting CXX compile features
+-- Detecting CXX compile features - done
+-- Configuring done
+-- Generating done
+-- Build files have been written to: /data/code/01-basic/L-cpp-standard/ii-cxx-standard/build
+
+$ make VERBOSE=1
+/usr/bin/cmake -H/data/code/01-basic/L-cpp-standard/ii-cxx-standard -B/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build --check-build-system CMakeFiles/Makefile.cmake 0
+/usr/bin/cmake -E cmake_progress_start /data/code/01-basic/L-cpp-standard/ii-cxx-standard/build/CMakeFiles /data/code/01-basic/L-cpp-standard/ii-cxx-standard/build/CMakeFiles/progress.marks
+make -f CMakeFiles/Makefile2 all
+make[1]: Entering directory '/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build'
+make -f CMakeFiles/hello_cpp11.dir/build.make CMakeFiles/hello_cpp11.dir/depend
+make[2]: Entering directory '/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build'
+cd /data/code/01-basic/L-cpp-standard/ii-cxx-standard/build && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /data/code/01-basic/L-cpp-standard/ii-cxx-standard /data/code/01-basic/L-cpp-standard/ii-cxx-standard /data/code/01-basic/L-cpp-standard/ii-cxx-standard/build /data/code/01-basic/L-cpp-standard/ii-cxx-standard/build /data/code/01-basic/L-cpp-standard/ii-cxx-standard/build/CMakeFiles/hello_cpp11.dir/DependInfo.cmake --color=
+Dependee "/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build/CMakeFiles/hello_cpp11.dir/DependInfo.cmake" is newer than depender "/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build/CMakeFiles/hello_cpp11.dir/depend.internal".
+Dependee "/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build/CMakeFiles/CMakeDirectoryInformation.cmake" is newer than depender "/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build/CMakeFiles/hello_cpp11.dir/depend.internal".
+Scanning dependencies of target hello_cpp11
+make[2]: Leaving directory '/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build'
+make -f CMakeFiles/hello_cpp11.dir/build.make CMakeFiles/hello_cpp11.dir/build
+make[2]: Entering directory '/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build'
+[ 50%] Building CXX object CMakeFiles/hello_cpp11.dir/main.cpp.o
+/usr/bin/c++     -std=gnu++11 -o CMakeFiles/hello_cpp11.dir/main.cpp.o -c /data/code/01-basic/L-cpp-standard/ii-cxx-standard/main.cpp
+[100%] Linking CXX executable hello_cpp11
+/usr/bin/cmake -E cmake_link_script CMakeFiles/hello_cpp11.dir/link.txt --verbose=1
+/usr/bin/c++      CMakeFiles/hello_cpp11.dir/main.cpp.o  -o hello_cpp11 -rdynamic
+make[2]: Leaving directory '/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build'
+[100%] Built target hello_cpp11
+make[1]: Leaving directory '/data/code/01-basic/L-cpp-standard/ii-cxx-standard/build'
+----

01-basic/L-cpp-standard/ii-cxx-standard/main.cpp

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+#include <iostream>
+
+int main(int argc, char *argv[])
+{
+    auto message = "Hello C++11";
+    std::cout << message << std::endl;
+    return 0;
+}