C++ in NRF9160

[TBP]

Hey,

I was wondering if I can write C++ code for the NRF9160:

• Does the NRF9160 DK support C++?
• Is SEGGER IDE compatible with it?
• Is it recommended to use C++ in it?

Thanks in advance!

Tal

[Mojo]

- The DK is a board.  You can program it with any language you want as long as there is a compiler supporting the Cortex-M33.  C, C++, Python, etc...

- The Segger IDE does not properly supports C++.  Although it uses GCC, it stripped out most C++ support of GCC.  

- C++ or not is a matter of tastes.  I use C++ mainly in any embedded project. There are a lot of advantage to it. You can use C++ without real object design as most people do.  Arduino, mBed are all C++.  C++ is not slower than C as many lead to believe.  It is the same performance.  Performance is directly related the coder himself.     

C is a subset of C++.  Sample compiler for both.  Any well written C code are always and must be 100% compatible with C++.  If not, it is considered bad coding.

[Didrik Rokhaug]

Hi.

As Mojo says, you can use any language as long as the compiler supports the Cortex M33.

When it comes to using C++ with the nRF Connect SDK, that is not recommended.

The Zephyr Project does support C++ using CONFIG_CPLUSPLUS and CONFIG_LIB_CPLUSPLUS, although it is still experimental. The up-stream tracking issue is here: https://github.com/zephyrproject-rtos/zephyr/issues/18554

When it comes to NRF, NRFXLIB, and MCUBOOT, I am not sure how well they support C++.

The main.c file must have a .cpp suffix for the build system to recognize that it should use a CXX compiler. See zephyr\samples\cpp_synchronization\src\main.cpp for a working C++ sample.

However, I would recommend using C unless you have a very good reason for using C++. That way, it will be more tested, and we will be more able to help you if you encounter any problems.

Best regards,

Didrik