C++ compilation error using CLI with SDK 14: error: expected declaration before '}' token

[schef]

Hi, i just renamed main.c to main.cpp.

In file included from ../../../main.cpp:57:0:
../../../../../../components/libraries/experimental_cli/nrf_cli.h:597:1: error: expected declaration before '}' token
 }
 ^

What should be the right way to fix that?

If i put all the include to extern "C" i get:

Compiling file: main.cpp
../../../main.cpp:81:1: error: expected declaration before '}' token
 }
 ^

Thanks.

[Jakub Rzeszutko]

I found a bug causing this error: In file: nrf_log_backend_interface.h (sdk\nrf5\components\libraries\experimental_log)

you need to change last lines from:

#endif // SUPPRESS_INLINE_IMPLEMENTATION

#endif //NRF_LOG_BACKEND_INTERFACE_H

#ifdef __cplusplus
}
#endif

to:

#endif // SUPPRESS_INLINE_IMPLEMENTATION

#ifdef __cplusplus
}
#endif

#endif //NRF_LOG_BACKEND_INTERFACE_H

Unfortunatelly C++ compiler will not manage to handle nrf_cli.h macros.

However I was able to compile this example when I removed all CLI related code to newly added file. I moved there all CLI includes, commands and initialization procedures. It only provided API functions to init, start and process CLI. It was working fine.

[schef]

What do you mean by working fine? Was is usable?

[Jakub Rzeszutko]

Yes.

In main.cpp I am only using these 3 functions (handling CLI):

extern "C" {
extern void cli_start(void);
extern void cli_init(void);
extern void cli_process(void);
}

I've created file cli.c where I moved all CLI related stuff. Inside cli.c I have implemented above functions. Now main.cpp is compiled with g++ and cli.c with gcc.

[schef]

Ok. But that still doesnt help me to call c++ commands directly. Maybe just to make the init in the C file and then registring the commands and subcommands in the c++ file.

[Jakub Rzeszutko]

It is not so easy. For sure you will be not able to use macro: NRF_CLI_CREATE_STATIC_SUBCMD_SET inside C++ file. there is const variable declaration and next its initialization what is not allowed in C++.

Is it a kind of big problem to implement commands in C file?

[schef]

I use Classes. So i would have to write a C implementation for every function i would want to call. I will make some testing and response what works for me.