Hi -
I think c_ptrTo(a_obj.value) ought to work. I think this is
a bug. Can file a bug report with a simple reproducer?
Thanks,
-michael
>Hi,
>
>In Chapel, how can I pass a reference (c pointer style) to a field of a
>record/class to an external C function.
>
>
>For example,
>
>extern proc c_func(val_ptr: c_void_ptr);
>
>class A {
> type retType;
> var value: retType;
>
> // constructors not shown but they are the usual simple ones
>}
>
>proc foo() {
> var a_obj = A;
> c_func(c_ptrTo(a_obj.value));
>
> // codegen first creates a copy of a_obj and then passes pointer to
>the copy¹s value field.
>
> // A a_obj_copy = a_obj; // copy by value
> // c_func(&(c_obj_copy.value));
> // But, I want the below:
>
> // c_func(&(c_obj.value));
>}
>
>Regards,
>Ashwin
>
>
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