Passing two different structs into same function

Question

I have 2 different sized structs and I would like to have one function in which I can pass them into. However, I do not know how to define the parameter of the function to

Answer 1

As dasblinkenlight put it, if you wanted to be able to pass two different structs into the functions, using void * to pass a generic pointer would be the way to go, however, doing so is not type safe and could easily lead to error-prone code.

What functionality are you trying to achieve by having two separate structs? You could consider combining the information into a single struct instead, and having a print function that prints out all non zero values?

Forgive the perhaps non-optimal c code, I am far from an expert, this is just to illustrate the point :)

typedef struct datastruct {
    int a;
    int b;
    float c;
} datastruct;

void printData(datastruct *d){

    printf("Data:\n")
    printf((d->a) ? "a=%d", a : "");
    printf((d->b) ? "b=%d", b : "");
    printf((d->c) ? "c=%.2f", c : "");
    printf("\n");
}

int main(void) {

    datastruct data = {0};
    /* now set values as needed */

    printData(&data);

    return 0;
}