C++ support of stm32cubeide does not work.

[yujin]

in default situation, you could not call c++ function in C file. 

So the main.c  is not suitable file in C++ project.

if user choose C++ project,the generated main.c ,stm32h7xx_it.c should sufixed with .cpp.

[Ghofrane GSOURI]

Hello @yujin 

Please check this C++ Project on STM32CubeIDE - STMicroelectronics Community

and There is a plan to allow STM32cubeMX for generatin... - STMicroelectronics Community ,

it may help you solve the issue .

THX

Ghofrane

[Andrew Neil]

---

@yujin wrote:

in default situation, you could not call c++ function in C file. 

---

Did you provide the appropriate extern "C" declaration?

https://stackoverflow.com/questions/1041866/what-is-the-effect-of-extern-c-in-c

[unsigned_char_array]

main.c:

extern "C" void c_function_in_cpp_file();

int main(void)
{
    c_function_in_cpp_file();
    while(1)
    {
    }
}

cpp_file.cpp:

void cpp_function_in_cpp_file()
{

}


extern "C" void c_function_in_cpp_file()
{
   cpp_function_in_cpp_file();
   //function can be linked to C code, but can execute C++ code
}

You make a header file compatible with both C and C++ by using:

cpp_file.h:

#ifdef __cplusplus
//c++ class definitions etc. invisible to C files including this header
#endif

#ifdef __cplusplus
extern "C" {
#endif

//functions that can be called by both C and C++

#ifdef __cplusplus
}
#endif