c function returning multiple values

is it possible to return multiple values from a c function ?

generally we can return a structure having multiple members

but this is equivalent to returning a single item from a

function .

how to return more then one value from a c function ?


avinna

You can pass the variables by reference.... they are not really returned, but the effect is similar

Code:

---

#include <stdio.h>


void doubleit(int &x, int &y){
x *= 2;
y *= 2;
}

int main(void){
int x = 10;
int y = 5;

doubleit(x,y);

printf("%i %i",x,y);

return 0;
}

---

And in C, this would be

Code:

---

#include <stdio.h>

void doubleit( int *x, int *y){
  *x *= 2;
  *y *= 2;
}

int main(void){
  int x = 10;
  int y = 5;
  doubleit( &x, &y);
  printf("%i %i",x,y);
  return 0;
}

---

You can also wrap up your return values in an array( if same type) or a structure ( if different types) and return that.