struct and call by reference

[Frighty]

Hi!

How can I create a struct using a separate function? Here is my dream:

void createAny(Any* any)
{
  any = (Any*) malloc(sizeof(Any));
  printf("%0X ", any);
}

int main(){
	Any* any = NULL;

	printf("%0X ", any);
	
	createAny(any)

	printf("%0X ", any);

	getchar();
	return 0;
}

Thank you!

 

[Frighty]

d'oh!

With malloc I use the pointer as a value. So it´s call by value, not call by reference - although using a pointer.

It is solved when passing the struct as a double pointer:

void createAny(Any** any)
{
  *any = (Any*) malloc(sizeof(Any));
  printf("%0X ", *any);
}

int main(){
	Any* any = NULL;

	printf("%0X ", any);
	
	createAny(&any)

	printf("%0X ", any);

	getchar();
	return 0;
}

Sometimes my brain cannot follow the path of C... :stupid: