Re: [Swig-devel] Problem creating struct arrays in Java

[William S F. <ws...@fu...>]

sr...@cs... wrote:
> Hello,
> 
> I am having problems creating creating struct arrays.
> Below is the interface file.
> 
> %include "typemaps.i"
> 
> %extend A {
> JAVA_ARRAYSOFCLASSES(B)
> %apply B[] {B *};
>         A(B *radioNuclides, int len);
>         ~A();
> }
> 
> I am getting the following compilation errors:-
> 
> error: passing argument 2 of â(*jenv)->GetArrayLengthâ makes pointer from
> integer without a cast
> error: passing argument 2 of â(*jenv)->GetLongArrayElementsâ makes pointer
> from integer without a cast
> 
> Please let me know what am i doing wrong and how to correct it.
> 

Apologies for delay in sending a reply. Your example doesn't quite work
and doesn't give the errors you show above. I've modified the example to:

%module example

%include "typemaps.i"
%include "arrays_java.i"

%inline %{

typedef struct A {} A;
typedef struct B {} B;

%}

%extend A {
JAVA_ARRAYSOFCLASSES(B)
%apply B[] {B *radioNuclides};
        A(B *radioNuclides, int len) {/* do something */ }
        ~A() { /* do something */ }
}

Now this compiles and works fine. I can't replicate your error message,
but maybe you are compiling C++ JNI code as C code or visa versa. If you
invoke swig -c++ you must compile your code as c++ code (eg use g++).
Likewise if you don't use swig -c++, then compile your code as c code.

William