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Hi,

I am just in the process of (again) trying to port another C lib to the ILE environment. In C it seems common to return an integer via a pointer.

#include <stdlib.h>
#include <stdio.h>

typedef int gint;
typedef unsigned int guint;
typedef void* gpointer;
#define GPOINTER_TO_INT(p) ((gint) (p))
#define GPOINTER_TO_UINT(p) ((guint) (p))
#define GINT_TO_POINTER(i) ((gpointer) (i))
#define GUINT_TO_POINTER(u) ((gpointer) (u))


main ()
{
gint x = 358;
gpointer p = GINT_TO_POINTER(x);
gint y = GPOINTER_TO_INT(p);
printf("%i", y);
}

Is this safe to do on IBM i as normally pointers are 16 bytes on IBM i instead of 4 bytes as on most PC Systems.

(The question is not about storing a pointer in an integer as I know that this is not possible because of the size differences.)

Regards

Mihael Schmidt
Anwendungsentwicklung

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