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/* -------------------------------------------------------------------------
* Special user directives
* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
/*
Implicit Conversion using the C++ constructor mechanism
*/
#define %implicitconv %feature("implicitconv")
#define %noimplicitconv %feature("implicitconv", "0")
#define %clearimplicitconv %feature("implicitconv", "")
/* ------------------------------------------------------------------------- */
/*
%extend_smart_pointer extend the smart pointer support.
For example, if you have a smart pointer as:
template <class Type> class RCPtr {
public:
...
RCPtr(Type *p);
Type * operator->() const;
...
};
you use the %extend_smart_pointer directive as:
%extend_smart_pointer(RCPtr<A>);
%template(RCPtr_A) RCPtr<A>;
then, if you have something like:
RCPtr<A> make_ptr();
int foo(A *);
you can do the following:
a = make_ptr();
b = foo(a);
ie, swig will accept a RCPtr<A> object where a 'A *' is
expected.
Also, when using vectors
%extend_smart_pointer(RCPtr<A>);
%template(RCPtr_A) RCPtr<A>;
%template(vector_A) std::vector<RCPtr<A> >;
you can type
a = A();
v = vector_A(2)
v[0] = a
ie, an 'A *' object is accepted, via implicit conversion,
where a RCPtr<A> object is expected. Additionally
x = v[0]
returns (and sets 'x' as) a copy of v[0], making reference
counting possible and consistent.
*/
%define %extend_smart_pointer(Type...)
%implicitconv Type;
%apply const SWIGTYPE& SMARTPOINTER { const Type& };
%apply SWIGTYPE SMARTPOINTER { Type };
%enddef
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