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// This file shows how one can access array members of structures and
// classes.
%module arraymember
%inline %{
#include "struct.h"
/* Create a structure for holding integer pointers */
typedef struct {
int *iptr;
} IntArray;
%}
%addmethods IntArray {
IntArray(int *iptr) {
IntArray *i = (IntArray *) malloc(sizeof(IntArray));
i->iptr = iptr;
return i;
}
~IntArray() {
free(self);
}
int __getitem__(int index) {
return self->iptr[index];
}
void __setitem__(int index, int val) {
self->iptr[index] = val;
}
};
// Now a "clever" typemap
// Return an IntArray instead of an int *
%typemap(memberout) IntArray * {
static IntArray i;
i.iptr = $source;
$target = &i;
}
// Set an IntArray
%typemap(memberin) IntArray * {
$target = $source->iptr;
}
// Now declare your structure (but in a different way).
struct foo {
int a;
IntArray *b;
};
// A helper function
%inline %{
struct foo *bar(int n) {
struct foo *f = (struct foo *) malloc(sizeof(struct foo));
int i;
f->a = n;
f->b = (int *) malloc(n*sizeof(int));
for (i = 0; i < n; i++)
f->b[i] = i;
return f;
}
%}
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