Thread: Returning a struct from a function call

Hi,

I have a problem with returning a struct that I don't understand.
This is just a part of my code. I get an "Incompatible types ..." error when I compile the code. I have been playing around with this code now for a while trying different things, setting '*' and '&' just everywhere. Now I'm stuck. So Please, what am I doing wrong?

Code:

#include <stdio.h>
typedef struct {
  int x;
  int y;
} Coordinate;

Coordinate c;

Coordinate CallF(Coordinate *c) {
  return c;
}

int main() {
  Coordinate *c_ptr;
  c_ptr = &c;
  c_ptr->x = 8;
  c_ptr->y = 5;

  c = CallF(&c);
  return 0;
}

Return the struct Coordinate from CallF(), not a pointer to it!

In CallF you should return the struct instead of the pointer. That means dereference using '*':

Code:

Coordinate CallF(Coordinate *c) {
    /* do stuff */
    return *c;
    }

Sorry, I don't understand how you mean. Should I use 'struct Coordinate CallF ...'?

OK ... 'return *c' did it. I have been trying to much so I got it completely wrong.

Thank you for your help.