| .. _cxx_support_v2: |
| |
| C++ Support for Applications |
| ############################ |
| |
| The kernel supports applications written in both C and C++. However, to |
| use C++ in an application you must configure the kernel to include C++ |
| support and the build system must select the correct compiler. |
| |
| The build system selects the C++ compiler based on the suffix of the files. |
| Files identified with either a **cxx** or a **cpp** suffix are compiled using |
| the C++ compiler. For example, :file:`myCplusplusApp.cpp` is compiled using C++. |
| |
| The kernel currently provides only a subset of C++ functionality. The |
| following features are *not* supported: |
| |
| * Dynamic object management with the **new** and **delete** operators |
| * :abbr:`RTTI (runtime type information)` |
| * Static global object destruction |
| |
| While not an exhaustive list, support for the following functionality is |
| included: |
| |
| * Inheritance |
| * Virtual functions |
| * Virtual tables |
| * Static global object constructors |
| * Exceptions |
| |
| Static global object constructors are initialized after the drivers are |
| initialized but before the application :c:func:`main()` function. Therefore, |
| use of C++ is restricted to application code. |
| |
| .. note:: |
| Do not use C++ for kernel, driver, or system initialization code. |
