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
copy's 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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