Question

I have a struct defined as the following:

typedef struct {
    string foo;
} A, B;

I also have a set of functions as follows:

void Init(A *p) {
    p->foo;
}
void Init(B *p) {
    p->foo;
}

The gcc complains that Init is being redefined. Can I simply delete the second Init function? Is A the same type as B?

Answer 1

Yes, A and B are essentially just different aliases to the same type.

I think the code would be more clear if you give a name to the struct itself, and define Init as a function taking a pointer to the struct:

struct MyStruct{
    string foo;
};
typedef MyStruct A, B;

void Init(MyStruct *p) {
    p->foo;
}

It’s just personal preference however.