Re: wrapping c void* as c# IntPtr not generating proper code

Hi Carlos

I've added the missing typemaps so this works in future releases. You can
simply add them into your own interface file for now. See
https://github.com/swig/swig/commit/bfddc50a6a38193acabaf8d895c5e472718a9a4d#
.

William

On Wed, 8 Apr 2020 at 10:10, Carlos Frederico Biscaya <[email protected]>
wrote:

> Hi all,
>
> So I know that using
> %apply void *VOID_INT_PTR { void * }
>
> is intended to wrap my void* parameters and return values as IntPtr
> instead of a generic SWIG SWIGTYPE_p_void.
>
> It works for functions, as described in the SWIG user manual. But if I do
> something like this:
>
> struct simpleVoid {
> void * myVoidMember;
> };
>
> the resulting code will not compile, because the generated wrapper for
> myVoidMember looks like this:
>
>   public global::System.IntPtr myVoidMember {
>     set {
>       SwigExperimentWrapperPINVOKE.simpleVoid_myVoidMember_set(swigCPtr,
> value);
>     }
>     get {
>       global::System.IntPtr cPtr =
> SwigExperimentWrapperPINVOKE.simpleVoid_myVoidMember_get(swigCPtr);
>       SWIGTYPE_p_void ret = (cPtr == global::System.IntPtr.Zero) ? null :
> new SWIGTYPE_p_void(cPtr, false);
>       return ret;
>     }
>   }
>
> The problem is, that the getter uses SWIGTYPE_p_void as type for ret
> instead of System.IntPtr, which will then produce a build failure, because
> there is no implicit way of converting it to System.IntrPtr when returning.
>
> What can I do to fix this behaviour? If you guys have any ideas, please,
> please tell.
>
> Br,
> Fred
>
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>

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