This commit adds notes about the C++ main() function prototype in the
C++ documentation.
Signed-off-by: Stephanos Ioannidis <stephanos.ioannidis@nordicsemi.no>
This commit reworks the C++ language support documentation such that:
1. it contains more up-to-date information regarding the available
features.
2. it makes a clear distinction between the Zephyr C++ subsystem and
the C++ standard library and describe the functionalities they
provide.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>