Use C Struct in Objective C

Question

In an Xcode project I have a C file with functions, it compiles and works OK

I want to wrap my C code in struct(s), how will I be able to call them in Objective-C?

Answer 1

Objective-C is a proper superset of C. Anything you can do in C can be done identically in Objective-C. So, you really don't need to think of them as different languages; Objective-C is simply "C plus some more stuff".

// this struct is compatible with C and Obj-C
struct fruit {
    int a;
};

int main()
{
    struct fruit apple;
    apple.a = 1;

    return 0;
}

Then, any C or Objective-C source file can access that struct. There aren't any additional complications introduced by Objective-C.