Linker error calling C-Function from Objective-C++

Question

I\'ve got a weird linker issue. I have code that looks like so:

    double given_amount = self.modelController.levelCompleteRewardAmount;
    swrve_currency_         


        

Answer 1

You may need to surround the function prototype with:

#if defined __cplusplus
extern "C" {
#endif

void swrve_currency_given (...whatever goes here...);

#if defined __cplusplus
};
#endif

That tells the compiler that it's a C function and not a C++ function.